Coffee machine suitable for capsules

Abstract

The invention discloses a coffee machine suitable for capsules, and the coffee machine comprises a storage module which comprises a turntable assembly, a plurality of goods channels are arranged on the turntable assembly along the circumferential direction, and each goods channel is used for storing a plurality of capsules; and the feeding module is arranged below the storage module, the feeding module comprises a guide seat and a fixed seat arranged at the bottom of the guide seat, the guide seat is provided with a containing cavity, and the fixed seat is provided with a first channel communicated with the extraction module. The rotary feeding module with the containing cavity is arranged between the storage module and the extraction module, so that capsules are firstly released from a goods channel of the storage module to the containing cavity on a guide seat of the feeding module, and then the capsules are conveyed and released to a first channel on a fixed seat through rotary motion of the guide seat; by means of the structural design, the capsules are naturally guided in the conveying process, it is ensured that the capsules can enter the extraction module in a proper state, and the problem that the capsules cannot enter or cannot be accurately extracted due to direct pushing in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee machines, and in particular to a coffee machine suitable for capsules. Background Art

[0002] In the existing capsule coffee machine, after the capsule is released from the aisle, the feeding module will push the capsule directly into the extraction module. During the pushing process, the capsule may not enter the extraction module due to incorrect posture or may not be accurately extracted after entering. Summary of the invention

[0003] The main purpose of the present invention is to provide a coffee machine suitable for capsules to solve the above technical problems.

[0004] The objective of the present invention can be achieved by adopting the following technical scheme: A coffee machine suitable for capsules, comprising: a storage module, the storage module comprising a turntable assembly, the turntable assembly is provided with a plurality of cargo lanes along the circumferential direction, each of the cargo lanes is used to store a plurality of capsules; a feeding module, the feeding module is arranged below the storage module, the feeding module comprises a guide seat and a fixed seat arranged at the bottom of the guide seat, the guide seat is provided with a cavity, the fixed seat is provided with a first channel connected to the extraction module; the cavity can reciprocate between a first position and a second position with the rotation of the guide seat, wherein the cavity is used to receive capsules released from the cargo lanes in the first position, and release the capsules to the first channel when rotating to the second position.

[0005] Wherein, the cargo channel comprises a material storage channel extending in a vertical direction, and limiting portions are arranged on both sides of the material storage channel; and the spacing between the limiting portions is smaller than the diameter of the opening end of the capsule.

[0006] Wherein, the material storage module further includes: a limiting mechanism, the limiting mechanism includes a plurality of support components, the support components are arranged corresponding to each of the cargo aisles; the support components include: a guide member, the guide member is arranged at the bottom of the turntable assembly, and the guide member is provided with a through guide hole; and a support member, the support member is inserted into the guide hole, the support member is in a first state when it is extended relative to the cargo aisle, and is in a second state when it is retracted relative to the cargo aisle; the support member is used to support the capsules in the cargo aisle in the first state, and allows the lowermost capsule in the cargo aisle to be released in the second state. The limiting mechanism further includes: a toggle assembly, the toggle assembly is arranged below the turntable assembly, and is used to drive each of the support members to move to the second state; an elastic reset member, the two ends of the elastic reset member are respectively connected to the guide member and the support member, and is used to drive the support member to return to the first state.

[0007] Wherein, through holes are provided on opposite sides of the cavity, and the feeding module further includes: a first pair-type sensor, which is arranged at the first position and is used to detect whether there is a capsule in the cavity through the through hole; and a second pair-type sensor, which is arranged at the second position and is used to detect whether the capsule has been released into the first channel through the through hole.

[0008] The feeding module further comprises: a feeding drive mechanism, which is used to control the guide seat to reciprocate between the first position and the second position according to the detection signals of the first and second beam sensors. A partition structure is provided between the storage module and the feeding module, and the partition structure can extend into the gap between the lowest capsule in the cargo channel and the capsule above it.

[0009] Wherein, the material storage module also includes: a goods arrival sensor and an origin position sensor, which are respectively used to detect the rotation position of the turntable assembly; a plurality of first induction sheets, the first induction sheets are arranged at the bottom of the turntable assembly, and each of the cargo lanes is provided with a first induction sheet; and a second induction sheet, the second induction sheet is arranged at the bottom of the turntable assembly and is staggered with the first induction sheet; when the turntable assembly drives the cargo lane to rotate to the first position, the first induction sheet can be detected by the goods arrival sensor; when the turntable assembly rotates to the point where the second induction sheet is detected by the origin position sensor, the partition structure is located between two adjacent cargo lanes.

[0010] Wherein, the extraction module includes: a boiler; and an extraction seat, the extraction seat is connected to the boiler, the top of the extraction seat is provided with a second channel connected to the first channel, the extraction seat is used to accommodate the capsule and extract the capsule; the extraction seat and the boiler are of an integrated design.

[0011] Wherein, it also includes: a milk frothing module, the milk frothing module includes a milk pump, a milk boiler, an air pump and a mixing tube assembly, the milk boiler is connected to the milk pump and the mixing tube assembly respectively, the mixing tube assembly includes an inlet section, a contraction section and an outlet section arranged in sequence, the outlet inner diameter of the contraction section is smaller than the inlet inner diameter, and there is a gap between the outlet of the contraction section and the outlet section to form a negative pressure area, and the gas delivery pipe of the air pump is passed through the mixing tube assembly to deliver air to the negative pressure area.

[0012] Beneficial technical effects of the present invention:

[0013] The present invention sets a rotary feeding module with a cavity between the storage module and the extraction module. The capsule is first released from the cargo channel of the storage module to the cavity on the guide seat of the feeding module, and then the capsule is transported and released to the first channel on the fixed seat through the rotation of the guide seat. This structural design is used to naturally guide the capsule during the transportation process, ensuring that the capsule can enter the extraction module in a suitable state, effectively avoiding the problem of the capsule being unable to enter or being unable to be accurately extracted due to direct pushing in the prior art. The present invention adopts an integrated design of the boiler and the extraction seat to minimize the water connection, effectively reduce heat loss, and ensure the stability of the extraction temperature.

[0014] The milk frothing module of the present invention generates negative pressure to inhale air through high-speed liquid flow, which is different from the traditional coffee machine that uses steam to absorb milk. It avoids the denaturation of milk protein by high-temperature steam and improves the taste and texture of milk froth. Through the structural design of the mixing tube assembly, especially the negative pressure zone formed between the contraction section and the outlet section, combined with the auxiliary air supply of the air pump, efficient gas-liquid mixing is achieved to prepare fine and uniform milk froth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0016] Figure 1 A three-dimensional schematic diagram of a material storage module in a coffee machine provided by an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0018] Figure 3 A three-dimensional schematic diagram of a feeding module and an extraction module in a coffee machine provided in an embodiment of the present invention;

[0019] Figure 4 A three-dimensional schematic diagram of a feeding module and an extraction module in a coffee machine provided in an embodiment of the present invention;

[0020] Figure 5 A bottom view schematic diagram of a turntable assembly in a coffee machine provided by an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of a support assembly in a coffee machine provided by an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of the assembly of a material storage module, an extraction module, a water supply module and a milk frothing module in a coffee machine provided in an embodiment of the present invention;

[0023] Figure 8 for Figure 7 A is an enlarged schematic diagram;

[0024] Fig. 9 A three-dimensional schematic diagram of a toggle assembly in a coffee machine provided by an embodiment of the present invention;

[0025] Fig.10 A three-dimensional schematic diagram of an installation base plate in a coffee machine provided by an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of the assembly of an extraction base and a boiler in a coffee machine provided by an embodiment of the present invention;

[0027] Fig.12 A schematic diagram of the structure between the turntable bottom plate and the rotary drive mechanism in a coffee machine provided by an embodiment of the present invention;

[0028] Fig.13 An enlarged schematic diagram of a milk frothing module in a coffee machine provided by an embodiment of the present invention;

[0029] Fig.14 A cross-sectional schematic diagram of a mixing tube assembly in a coffee machine provided by an embodiment of the present invention;

[0030] Fig.15 for Fig.14 A magnified schematic diagram of middle C;

[0031] Fig.16 A schematic diagram of a milk storage container in a coffee machine provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] In the figure: 110-turntable assembly, 111-turntable top plate, 112-turntable bottom plate, 113-bottom plate support plate, 120-cargo channel, 121-limiting part, 122-storage channel, 130-capsule, 140-installation bottom plate, 210-support assembly, 220-guide member, 221-guide hole, 230-support member, 240-sliding assembly, 241-sliding drive motor, 242-cam, 243-push plate, 2431-first vertical portion, 2432-first horizontal portion, 250-elastic reset member, 310-guide seat, 311-receiving cavity, 312-through hole, 320-fixed seat, 321-first channel, 331-feeding drive motor, 332-driving gear, 333-driven gear, 410-first counter-radiation sensor, 420-second counter-radiation sensor, 510-cargo arrival sensor, 511-first induction sheet, 512-beam of the goods arrival sensor, 520-origin position sensor, 521-second induction sheet, 522-beam of the origin position sensor, 610-stepping motor, 620-coupling, 630-motor bracket, 640-bottom plate, 650-thrust bearing, 710-partition structure, 711-second vertical portion, 712-second horizontal portion, 810-water supply module, 820-milk foam module, 821-milk pump, 822-milk boiler, 823-air pump, 8231-gas delivery pipe, 824-mixing tube assembly, 8241-inlet section, 8242-contraction section, 8243-outlet section, 825-first milk delivery pipeline, 826-second milk delivery pipeline, 900-extraction module, 910-boiler, 920-extraction seat, 930-second channel, 940-liquid outlet, 100-coffee machine, 200-milk storage container. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0036] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0037] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] like Figure 1-Figure 4 As shown, an embodiment of the present invention provides a coffee machine suitable for capsules, comprising: a storage module, the storage module comprising a turntable assembly 110, a plurality of cargo lanes 120 are circumferentially arranged on the turntable assembly 110, and each cargo lane 120 is used to store a plurality of capsules 130; a feeding module, the feeding module is arranged below the storage module, the feeding module comprises a guide seat 310 and a fixed seat 320 arranged at the bottom of the guide seat 310, a cavity 311 is provided on the guide seat 310, and a first channel 321 connected to the extraction module 900 is provided on the fixed seat 320; the cavity 311 can reciprocate between a first position and a second position with the rotation of the guide seat 310, wherein the cavity 311 is used to receive the capsule 130 released from the cargo lane 120 in the first position, and release the capsule 130 to the first channel 321 when rotating to the second position.

[0039] In this embodiment, the turntable assembly 110 is a cylindrical structure as a whole, and a plurality of passages 120 are arranged at intervals along the circumference of the turntable assembly 110. Each passage 120 is used to store a plurality of capsules 130, and the capsules 130 are stacked in sequence along the vertical direction in the passage 120, and each capsule 130 is placed horizontally with its open end facing the turntable assembly 110. A plurality of capsules 130 can be stored in the passage 120 and their release can be controlled by a limit mechanism.

[0040] The shape of the cavity 311 is compatible with the outer shape of the capsule 130 , and the cavity 311 can temporarily store and limit the directly dropped capsule 130 , without the need to perform secondary adjustment on the posture of the capsule 130 during the falling process.

[0041] The fixing seat 320 is provided with a first channel 321 connected to the extraction module 900, and the first channel 321 is used to transport the capsule 130 to the extraction module 900. In order to realize the transportation of the capsule 130, the cavity 311 can rotate with the guide seat 310, wherein the rotation track of the cavity 311 has two working positions: a first position and a second position. The first position corresponds to the cargo lane 120 from which the capsule 130 is to be released, and the second position corresponds to the first channel 321. Specifically, the first position is the first release position of the capsule 130, and the second position is the second release position of the capsule 130. When the cavity 311 and the cargo lane 120 are both located at the first position, they are used to receive the capsule 130 released from the cargo lane 120; when the cavity 311 rotates to the second position, the capsule 130 is released into the first channel 321.

[0042] In this embodiment, since the capsule 130 is in the shape of a truncated cone as a whole, during the process of being released from the cargo channel 120 and transported to the extraction module 900, its posture needs to be adjusted to ensure that it can enter the extraction module 900 through the first channel 321. By adopting a rotary feeding method, the posture of the capsule 130 can be adjusted by utilizing the rotation process of the cavity 311. Specifically, when the cavity 311 rotates from the first position to the second position, the capsule 130 will gradually adjust its posture under the limiting effect of the cavity 311, so that it can finally enter the first channel 321 in a suitable direction and posture, thereby ensuring that the capsule 130 can smoothly enter the extraction module 900 and achieve extraction. This design not only simplifies the structure of the capsule 130 transportation, but also effectively avoids the problem of the capsule 130 being unable to be extracted due to the capsule 130 being stuck or having an incorrect posture.

[0043] In the actual working process, the turntable assembly 110 in the storage module rotates to align the target channel 120 with the cavity 311 of the feeding module. At this time, the limit mechanism releases the capsule 130 at the bottom of the target channel 120, so that the capsule 130 falls into the cavity 311 at the first position under the action of gravity. Subsequently, the guide seat 310 drives the cavity 311 to rotate to the second position. In this process, the posture of the capsule 130 is automatically adjusted, and finally falls from the cavity 311 into the first channel 321, and finally falls into the extraction module 900 for extraction.

[0044] like Figure 1 and Figure 2 As shown, in one embodiment, the cargo channel 120 includes a storage channel 122 extending in the vertical direction, and limiting portions 121 are arranged on both sides of the storage channel 122; the spacing between the limiting portions 121 is smaller than the diameter of the opening end of the capsule 130, so that the capsules 130 can be arranged in sequence in a horizontal state.

[0045] In the present embodiment, each aisle 120 in the material storage module includes a limiting portion 121 disposed opposite to each other. The two limiting portions 121 form a vertical space for accommodating capsules 130, and the top and bottom ends of the vertical space are interconnected to facilitate the storage and release of the capsules 130. The spacing between the two limiting portions 121 disposed opposite to each other is smaller than the diameter of the opening end of the capsule 130. Such a design enables the capsule 130 to be stably placed in the vertical space in a horizontal state. When the lowest capsule 130 is supported and cannot fall, all capsules 130 above the capsule 130 can be in a stable state and will not fall out from the aisle 120.

[0046] Specifically, since the capsule 130 is in the shape of a truncated cone as a whole, the diameter of the open end is larger than the diameter of the other end, and by setting the spacing between the limiting parts 121 to be smaller than the diameter of the open end, reliable positioning of the capsule 130 can be achieved. When the capsules 130 are stacked in the aisle 120 in the vertical direction, the open ends of each capsule 130 are all facing the turntable assembly 110, and the limiting parts 121 are used to limit each capsule 130, which can effectively prevent the capsule 130 from falling from the aisle 120. This arrangement enables the aisle 120 to have a good bearing and guiding effect on the capsule 130, while not affecting the normal downward release of the capsule 130.

[0047] In this embodiment, the length direction of the cargo lane 120 is the same as the axial direction of the turntable assembly 110. This arrangement allows the capsules 130 to be stacked and arranged along the axial direction of the turntable assembly 110, effectively utilizing the vertical space. This structural design not only enables the orderly storage of the capsules 130, but also ensures the stability of the capsules 130 during the release process. When the capsules 130 need to be released, the spacing design between the limiting parts 121 ensures that the capsules 130 can maintain the correct posture to fall, avoiding problems such as jamming or tilting.

[0048] The design of this cargo lane structure fully considers the geometric characteristics of the capsule 130, and through the reasonable arrangement of the limiter 121, it can ensure the stable storage of the capsule 130 and the smooth release of the capsule 130. At the same time, due to the vertical stacking method, it can also improve the utilization rate of the storage space and make the overall structure of the coffee machine more compact.

[0049] like Figure 5 and Figure 6 As shown, in one embodiment, the storage module also includes a limiting mechanism for controlling the release of the capsule 130, and the limiting mechanism includes a plurality of support components 210 that can switch between a first state and a second state, and each support component 210 is arranged corresponding to each aisle 120; the support component 210 is used to support the capsule 130 in the aisle 120 in the first state, and allows the bottom capsule 130 in the aisle 120 to be released in the second state.

[0050] In this embodiment, in order to achieve orderly release control of the capsules 130 in each aisle 120, the limiting mechanism adopts a design scheme of multiple support components 210. Each support component 210 can switch between a first state (extended state) and a second state (retracted state), and each support component 210 is set in a one-to-one correspondence with each aisle 120. This one-to-one correspondence design can avoid interference or asynchronous action problems that may occur when multiple aisles 120 share a support component 210, thereby improving the reliability of the capsule 130 release process.

[0051] Specifically, when the support assembly 210 is in the first state (extended state), it can reliably support the capsules 130 in the aisle 120 to prevent the capsules 130 from accidentally falling. Since the capsules 130 are stacked vertically in the aisle 120, when the bottom capsule 130 is supported, all the capsules 130 above it can maintain a stable state. When the support assembly 210 switches to the second state (i.e., the retracted state), the support assembly 210 no longer provides support for the capsules 130, and the bottom capsule 130 in the aisle 120 is allowed to be released downward under the action of gravity.

[0052] In actual operation, the turntable assembly 110 in the storage module rotates to align the target aisle 120 with the cavity 311 of the feeding module. At this time, the support assembly 210 corresponding to the aisle 120 switches to the second state (retracted state), so that the lowermost capsule 130 falls into the cavity 311 under the action of gravity. After the release is completed, the support assembly 210 will automatically return to the first state (extended state) and continue to support the remaining capsules 130 in the aisle 120.

[0053] like Figure 6 As shown, in one embodiment, the support assembly 210 includes: a guide member 220, which is arranged at the bottom of the turntable assembly 110, and a through guide hole 221 is provided on the guide member 220; and a support member 230, which is passed through the guide hole 221, and the support member 230 is in a first state when it is extended relative to the cargo aisle 120, and is in a second state when the support member 230 is retracted relative to the cargo aisle 120.

[0054] In this embodiment, the support assembly 210 of the limiting mechanism adopts a combined structure of a guide member 220 and a support member 230, and the combined structure is fixed to the bottom surface of the turntable assembly 110. Specifically, a through guide hole 221 is provided on the guide member 220, and the support member 230 is inserted into the guide hole 221. The setting of the guide hole 221 enables the support member 230 to slide back and forth inside the guide hole 221, and can guide the support member 230, ensuring that the motion trajectory of the support member 230 is stable and reliable.

[0055] The support member 230 can reciprocate in the guide hole 221 and has two working states: an extended state (first state / extended position) and a retracted state (second state / retracted position). When the support member 230 is in the extended state, its extended end abuts against the bottom surface of the lowest capsule 130, thereby supporting the capsule 130 in the cargo aisle 120 and preventing the capsule 130 from falling; when the support member 230 is in the retracted state, the extended end of the support member 230 retreats outside the range of the cargo aisle 120, and the support member 230 no longer supports the capsule 130, thereby allowing the lowest capsule 130 in the cargo aisle 120 to be released downward. By controlling the support member 230 to switch between the extended state and the retracted state, the release of the capsule 130 can be controlled.

[0056] In this embodiment, the guide member 220 is fixed below the turntable assembly 110, and the axis of the guide hole 221 is parallel to the radial direction of the turntable assembly 110. This arrangement makes the movement direction of the support member 230 consistent with the radial direction of the turntable assembly 110, so that the support member 230 can be radially extended to support the capsule 130 or radially retracted to release the capsule 130. This layout not only meets the functional requirements, but also makes the overall structure more compact.

[0057] The combined design of the guide member 220 and the support member 230 can not only ensure the stability and reliability of the movement of the support member 230, but also has a simple structure and is easy to maintain. At the same time, since the guide hole 221 is used to guide the support member 230, it can effectively prevent the support member 230 from deflecting or getting stuck during the movement, ensuring the accuracy and smoothness of its movement.

[0058] like Figure 7 and Figure 8 As shown, in one embodiment, the limiting mechanism also includes: a toggle assembly 240, which is arranged below the turntable assembly 110 and is used to drive each support member 230 to move to the second state; an elastic return member 250, wherein the two ends of the elastic return member 250 are respectively connected to the guide member 220 and the support member 230, and are used to drive the support member 230 to return to the first state.

[0059] In this embodiment, the toggle assembly 240 includes a toggle drive motor 241, a cam 242 connected to the output shaft of the toggle drive motor 241, and a push plate 243 abutting against the cam 242. The toggle drive motor 241 drives the push plate 243 to extend or retract by controlling the rotation of the cam 242. When the push plate 243 retracts, it can drive the support member 230 to move to the retracted position by abutting against the support member 230, thereby achieving the release of the capsule 130.

[0060] In order to ensure that the support member 230 can be reliably restored to the extended position, and also to enable the toggle assembly 240 to be used in conjunction with each support assembly 210 respectively, the limiting mechanism also includes an elastic reset member 250. The elastic reset member 250 is specifically a reset spring. One end of the reset spring is fixedly connected to the support member 230, and the other end is fixedly connected to the guide member 220. When the push plate 243 is extended under the drive of the toggle drive motor 241, the elastic force of the reset spring can drive the support member 230 to return to the extended position and re-support the capsule 130 above it. This automatic reset mechanism based on the reset spring can realize the reciprocating motion of the support member 230 without an additional driving device, and the structure is simple and reliable. At the same time, it also saves the number of configurations of the toggle assembly 240.

[0061] In a specific embodiment, the profile of the cam 242 is an eccentric structure, and can generate reciprocating motion under the drive of the toggle drive motor 241. One end of the push plate 243 abuts against the outer peripheral surface of the cam 242, so that it can perform telescopic motion following the rotation of the cam 242. This design using the cam 242 mechanism can convert the rotational motion of the toggle drive motor 241 into the linear reciprocating motion of the push plate 243, and drive the support member 230 to perform corresponding motion through the push plate 243.

[0062] In other specific embodiments, the toggle assembly 240 may also adopt a ball screw mechanism. The mechanism includes a servo motor, a ball screw connected to the output shaft of the servo motor, and a ball nut (not shown in the drawings) fixedly connected to the push plate 243. When the servo motor drives the ball screw to rotate, the ball nut cooperates with the ball nut to convert the rotary motion into the linear reciprocating motion of the push plate 243, thereby driving the support member 230 to perform corresponding motion.

[0063] In a specific embodiment, the toggle assembly 240 is fixedly mounted at the bottom of the mounting base plate 140 and does not rotate with the turntable assembly 110, and its mounting position corresponds to the position (first position) of the cavity 311 of the feeding module where the capsule 130 is received. When the turntable assembly 110 rotates to align a certain aisle 120 with the cavity 311, the support member 230 corresponding to the aisle 120 is located just behind the push plate 243 of the toggle assembly 240, and at this time, when the push plate 243 retracts, it can drive the support member 230 to retract as well.

[0064] In a specific embodiment, the push plate 243 is specifically L-shaped, and includes a first vertical portion 2431 and a first horizontal portion 2432. The first horizontal portion 2432 abuts against the cam 242, and the first vertical portion 2431 is used to abut against the support member 230 to pull it to the retracted position, thereby releasing the capsule 130 above the support member 230. The design of this L-shaped structure enables the push plate 243 to effectively transmit the movement of the cam 242 to the support member 230, ensuring the reliability of the action.

[0065] The combined design of the toggle assembly 240 and the elastic reset member 250 realizes the automatic control of the movement of the support member 230. The support member 230 is retracted by toggling the drive motor 241 to drive the cam 242 to drive the push plate 243 to move, and the elastic force of the elastic reset member 250 is used to realize the automatic reset of the support member 230. The whole process is both reliable and efficient. At the same time, this design also avoids the use of a complex driving mechanism, reducing the complexity and failure rate of the coffee machine.

[0066] like Figure 3 and Figure 4 As shown, in one embodiment, through holes 312 are provided on opposite sides of the cavity 311, and the feeding module also includes: a first through-type sensor 410, which is arranged at a first position and is used to detect whether there is a capsule 130 in the cavity 311 through the through hole 312; and a second through-type sensor 420, which is arranged at a second position and is used to detect whether the capsule 130 has been released to the first channel 321 through the through hole 312.

[0067] In this embodiment, through holes 312 are provided on opposite sides of the cavity 311 of the feeding module, and the feeding module further comprises a first through-beam sensor 410 and a second through-beam sensor 420. The two through-beam sensors are used to detect the presence state of the capsule 130 in the cavity 311 and the release state of the capsule 130, respectively.

[0068] Specifically, the first through-beam sensor 410 is disposed at the first position, that is, the position of the cavity 311 for receiving the capsule 130. When the cavity 311 rotates to the first position, the first through-beam sensor 410 can emit and receive light signals through the through holes 312 on both sides of the cavity 311, thereby detecting whether there is a capsule 130 in the cavity 311. When the capsule 130 successfully falls into the cavity 311, the transmission of the light signal is blocked, and the first through-beam sensor 410 outputs a corresponding detection signal to confirm that the capsule 130 has successfully entered the cavity 311.

[0069] The second through-beam sensor 420 is disposed at the second position, that is, the position where the cavity 311 releases the capsule 130 to the first channel 321. When the cavity 311 rotates to the second position, the second through-beam sensor 420 can detect whether the capsule 130 has been released from the cavity 311 and entered the first channel 321 through the through holes 312 on both sides of the cavity 311. If the capsule 130 has been successfully released, the optical signal can pass through the through holes 312 of the cavity 311 and be received by the second through-beam sensor 420; if the capsule 130 is still retained in the cavity 311, the transmission of the optical signal will be blocked.

[0070] This detection method using a beam sensor can monitor the status of the capsule 130 in the feeding process in real time, providing a basis for subsequent control actions. For example:

[0071] 1. When the first through-beam sensor 410 detects that the capsule 130 has successfully entered the cavity 311, it will trigger the guide seat 310 to drive the cavity 311 to rotate;

[0072] 2. When the second through-beam sensor 420 detects that the capsule 130 has been successfully released, the guide seat 310 will drive the cavity 311 to return to the initial position.

[0073] This can effectively avoid abnormal situations such as material jamming caused by the capsule 130 not being in place or not being released. At the same time, due to the use of photoelectric detection, it has the characteristics of fast response speed and high reliability, and can accurately reflect the real-time status of the capsule 130 during the conveying process, thereby ensuring the stability and reliability of the entire feeding process.

[0074] like Figure 2 and Figure 3 As shown, in one embodiment, the feeding module further includes: a feeding drive mechanism, which is used to control the guide seat 310 to reciprocate between the first position and the second position according to the detection signals of the first and second beam sensors 410 and 420.

[0075] In this embodiment, the feeding drive mechanism includes a feeding drive motor 331. The output shaft of the feeding drive motor 331 is connected to the guide seat 310 via a gear set, and the rotation of the feeding drive motor 331 can drive the guide seat 310 to rotate, thereby realizing the reciprocating motion of the cavity 311 between the first position and the second position.

[0076] Specifically, the feeding drive motor 331 controls the rotation of the guide seat 310 according to the detection signals of the first and second beam sensors 410 and 420. When the capsule 130 falls from the cargo channel 120, the first beam sensor 410 can detect that the capsule 130 has entered the cavity 311. At this time, the feeding drive motor 331 starts, drives the guide seat 310 to rotate through the gear set, and rotates the cavity 311 from the first position to the second position. When the cavity 311 reaches the second position, the capsule 130 falls from the cavity 311 into the first channel 321 under the action of gravity. At this time, the second beam sensor 420 detects that the capsule 130 has left the cavity 311, and the feeding drive motor 331 starts again, drives the guide seat 310 to rotate in the opposite direction, and returns the cavity 311 to the first position, waiting to receive the next capsule 130.

[0077] Through this automatic control method based on the detection signal of the beam sensor, the automatic control of the feeding module can be realized to ensure the stability and reliability of the conveying process of the capsule 130. This can avoid the problem that the capsule 130 does not fall into the cavity 311 or falls into the first channel 321, and the feeding drive motor 331 drives the guide seat 310 to rotate.

[0078] In a specific embodiment, the guide seat 310 is rotatably connected to the fixed seat 320. The gear set includes a driving gear 332 and a driven gear 333, wherein the driving gear 332 is fixedly connected to the output shaft of the feeding drive motor 331, and the driven gear 333 is fixedly connected to the bottom surface of the guide seat 310. When the output shaft of the feeding drive motor 331 rotates, the guide seat 310 can be driven to rotate relative to the fixed seat 320 through the driving gear 332 and the driven gear 333 in turn. This design based on gear transmission can not only realize the precise control of the rotational motion, but also has the characteristics of stable transmission.

[0079] like Figure 7 and Figure 8 As shown, in one embodiment, a partition structure 710 is provided between the storage module and the feeding module, and the partition structure 710 can extend into the gap between the lowest capsule 130 and the capsule 130 above it in the cargo channel 120 .

[0080] In this embodiment, in order to further control the orderly release of the capsules 130, a partition structure 710 is provided between the storage module and the feeding module. The function of the partition structure 710 is to block the capsules 130 above the capsules 130 to be released, so as to prevent multiple capsules 130 from falling at the same time.

[0081] Specifically, the capsules 130 in the aisle 120 are divided into two parts, the first part is the capsule 130 at the bottom, and the second part is all the capsules 130 above the capsule 130. When the aisle 120 rotates to the top of the cavity 311, the partition structure 710 is located above the bottom capsule 130 (the first part) in the aisle 120, and is also located below all the capsules 130 (the second part) above the capsule 130. In this way, when the bottom capsule 130 falls, the capsules 130 above it will not be affected, ensuring that only the capsule 130 at the bottom can fall. This arrangement ensures that only one capsule 130 is released into the feeding module at a time, effectively preventing the jamming or blockage problems that may be caused by the simultaneous falling of multiple capsules 130.

[0082] In the present embodiment, the partition structure 710 is of a fixed design, which is fixedly installed between the storage module and the feeding module, specifically fixed to the top surface of the mounting base plate 140. When the cargo lane 120 is aligned with the cavity 311, the partition structure 710 plays a blocking role. The partition structure 710 is specifically L-shaped, having a second vertical portion 711 and a second horizontal portion 712. When the cargo lane 120 rotates to the top of the cavity 311, the second horizontal portion 712 extends between the lowermost capsule 130 and the capsule 130 above it, thereby realizing reliable limiting of the upper capsule 130. This fixed design can effectively cooperate with the limiting mechanism corresponding to each cargo lane 120 to realize the batch release of the capsule 130.

[0083] like Figure 6 and 10 As shown, in one embodiment, the material storage module also includes: a goods arrival sensor 510 and an origin position sensor 520, which are respectively used to detect the rotation position of the turntable assembly 110; a plurality of first sensing sheets 511, the first sensing sheet 511 is arranged at the bottom of the turntable assembly 110, and each cargo lane 120 is correspondingly provided with a first sensing sheet 511; and a second sensing sheet 521, the second sensing sheet 521 is arranged at the bottom of the turntable assembly 110 and is staggered with the first sensing sheet 511; wherein, when the turntable assembly 110 drives the cargo lane 120 to rotate to the first position, the first sensing sheet 511 can be detected by the goods arrival sensor 510; when the turntable assembly 110 rotates to the point where the second sensing sheet 521 is detected by the origin position sensor 520, the partition structure 710 is located between two adjacent cargo lanes 120.

[0084] In this embodiment, the cargo arrival sensor 510 and the origin position sensor 520 are specifically fixed on the top surface of the mounting base plate 140 and do not rotate with the turntable assembly 110 .

[0085] Specifically, a plurality of first sensing sheets 511 are evenly arranged at the bottom of the turntable assembly 110 along the circumference of the turntable assembly 110, and a first sensing sheet 511 is correspondingly arranged for each cargo lane 120. When the turntable assembly 110 drives the cargo lanes 120 to rotate, the first sensing sheets 511 will sequentially pass through the detection positions of the cargo arrival sensors 510. When a cargo lane 120 rotates to the first position, its corresponding first sensing sheet 511 will be detected by the cargo arrival sensor 510, specifically, the first sensing sheet 511 will block the light beam 512 of the cargo arrival sensor, and at this time, it can be confirmed that the cargo lane 120 has rotated to the right position.

[0086] The second sensing sheet 521 is also arranged at the bottom of the turntable assembly 110, but is staggered with the first sensing sheet 511, and is used to cooperate with the origin position sensor 520 to determine the initial position of the turntable assembly 110. When the turntable assembly 110 rotates until the second sensing sheet 521 is detected by the origin position sensor 520, specifically, the second sensing sheet 521 will be detected by the beam 522 of the origin position sensor, indicating that the turntable assembly 110 has returned to the origin position, and the partition structure 710 is located between two adjacent aisles 120. This arrangement ensures that each time the turntable assembly 110 returns to the origin position, the partition structure 710 will not interfere with the storage of the capsules 130 in any aisle 120, ensuring that all the capsules 130 in all aisles 120 fall onto the corresponding limiting mechanisms.

[0087] In a specific embodiment, both the goods arrival sensor 510 and the origin position sensor 520 are photoelectric sensors. The first sensing sheet 511 and the second sensing sheet 521 are arranged at positions that are staggered to avoid triggering the two sensors at the same time. When the turntable assembly 110 rotates, either the goods arrival sensor 510 or the origin position sensor 520 is triggered, and the two signals do not interfere with each other. This dual-sensor based detection method can accurately control the rotation position of the turntable assembly 110 and ensure the accurate delivery of the capsule 130.

[0088] The design of this position detection mechanism cooperates with the rotation drive mechanism at the bottom of the turntable assembly 110 to achieve accurate control of the position of the turntable assembly 110. Through the cooperation of the cargo arrival sensor 510 and the first sensing sheet 511, the position of each cargo lane 120 can be accurately located to ensure that the capsule 130 can accurately fall into the cavity 311 of the feeding module; through the cooperation of the origin position sensor 520 and the second sensing sheet 521, the turntable assembly 110 can accurately return to the origin position to avoid the partition structure 710 blocking the normal release of the capsule 130 in the cargo lane 120.

[0089] In a specific embodiment, the rotation drive mechanism at the bottom of the turntable assembly 110 includes a (reduction) stepper motor 610, whose output shaft is connected to the rotating shaft (not shown in the drawings) at the bottom of the turntable assembly 110 through a coupling 620, and the stepper motor 610 cooperates with the cargo position sensor 510 and the origin position sensor 520 respectively.

[0090] Specifically, when the stepper motor 610 drives the turntable assembly 110 to rotate, the first induction sheet 511 will sequentially pass through the detection position of the goods arrival sensor 510. When a certain cargo lane 120 rotates to the first position, its corresponding first induction sheet 511 is detected by the goods arrival sensor 510. At this time, the controller (not shown in the drawings) sends a stop signal to the stepper motor 610, so that the turntable assembly 110 stops accurately at this position, ensuring that the cargo lane 120 is accurately aligned with the cavity 311 of the feeding module. When the cargo lane 120 is aligned with the cavity 311, the support member 230 corresponding to the cargo lane 120 is located just behind the push plate 243 of the toggle assembly 240. At this time, the push plate 243 retracts, which can drive the support member 230 to retract to the second state, so that the lowest capsule 130 falls into the cavity 311 under the action of gravity. The first beam sensor 410 detects that the capsule 130 has entered the cavity 311 through the through holes 312 on both sides of the cavity 311. After the capsule 130 is released, the push plate 243 is first controlled to reset, and then the support assembly 210 automatically returns to the first state (extended state) under the action of the elastic reset member 250, so as to continue to support the remaining capsules 130 in the cargo channel 120. At the same time, the guide seat 310 of the feeding module drives the cavity 311 to rotate to the second position. During this process, the posture of the capsule 130 is automatically adjusted, and finally falls from the cavity 311 into the first channel 321. The second beam sensor 420 detects through the through hole 312 that the capsule 130 has been released.

[0091] When the turntable assembly 110 rotates until the second sensing plate 521 is detected by the origin position sensor 520, the controller controls the stepper motor 610 to stop, so that the turntable assembly 110 stops at the origin position. At this time, the partition structure 710 is located between two adjacent aisles 120, preventing the partition structure 710 from blocking the capsule 130 in the aisle 120 from falling normally to the limiting mechanism.

[0092] The turntable assembly 110 continues to rotate under the control of the stepper motor 610. When the next cargo aisle 120 rotates to the first position, its corresponding first induction sheet 511 is detected by the cargo arrival sensor 510. At this time, the controller sends a stop signal to the stepper motor 610, and the subsequent process is the same. After the turntable assembly 110 rotates one circle, the second induction sheet 521 is detected by the origin position sensor 520, indicating that the turntable assembly 110 has returned to the origin position. At this time, the partition structure 710 is located between two adjacent cargo aisles 120 to prevent the partition structure 710 from blocking the normal fall of the capsule 130 in the cargo aisle 120 to the limiting mechanism. This dual-sensor based detection method can accurately control the rotation position of the turntable assembly 110 to ensure that the capsule 130 can be accurately delivered.

[0093] like Fig.12As shown, in this embodiment, the turntable assembly 110 includes a turntable top plate 111 and a turntable bottom plate 112 which are distributed up and down, and a bottom plate support plate 113 is also arranged below the turntable bottom plate 112. The rotation drive mechanism also includes a motor bracket 630 for fixing the stepper motor 610, a bottom plate 640 is fixed above the motor bracket 630, and a thrust bearing 650 is arranged between the bottom plate 640 and the bottom plate support plate 113. The bottom plate support plate 113 is in contact with the thrust bearing 650 over a large area. This design can automatically eliminate the gap through assembly, so that the turntable bottom plate 112 rotates more smoothly, and the repeated positioning accuracy of the rotation is higher, so as to avoid the capsule 130 from being misaligned with the connection station.

[0094] like Fig.11 As shown, in one embodiment, the extraction module 900 includes: a boiler 910; and an extraction seat 920, the extraction seat 920 is connected to the boiler 910, and the top of the extraction seat 920 is provided with a second channel 930 connected to the first channel 321, and the extraction seat 920 is used to accommodate the capsule 130 and extract the capsule 130; the extraction seat 920 and the boiler 910 are of an integrated design.

[0095] In this embodiment, the extraction module 900 of the coffee machine includes a boiler 910 and an extraction seat 920, which are used to extract the capsule 130. The boiler 910 is connected to the extraction seat 920 to provide hot water required for the extraction process; the top of the extraction seat 920 is provided with a second channel 930 connected to the first channel 321 of the feeding module, which is used to receive the capsule 130 dropped from the first channel 321.

[0096] Specifically, the boiler 910 includes a water inlet and a water outlet (not shown in the drawings), the water inlet is used to receive water provided by the water supply module 810, and the water outlet is connected to the extraction seat 920. The boiler 910 can heat the water entering the boiler 910 to a preset temperature (e.g., 60-95°C) to provide suitable temperature conditions for coffee extraction. In order to improve heating efficiency and reduce heat loss, the boiler 910 and the extraction seat 920 adopt an integrated design, that is, the boiler 910 is directly connected to the extraction seat 920, which can shorten the transportation path of hot water and reduce heat loss.

[0097] The extraction seat 920 is provided with a cavity (not shown in the drawings) for accommodating the capsule 130, and a second channel 930 provided on the top thereof guides the capsule 130 to fall accurately into the cavity. A puncture structure is provided in the cavity for puncturing the capsule 130. During the extraction process, hot water flows from the boiler 910 into the extraction seat 920 to brew the punctured capsule 130, and the extracted coffee liquid flows out from the liquid outlet 940 at the front of the extraction seat 920.

[0098] In a specific embodiment, the boiler 910 and the extraction seat 920 are arranged below the feeding module, and the first channel 321 and the second channel 930 form a connecting passage, so that the capsule 130 can be automatically dropped by gravity without the need for an additional conveying mechanism, thereby simplifying the overall structure.

[0099] like Figure 7 As shown, in one embodiment, the coffee machine further includes a water supply module 810 and a milk frothing module 820, and the water supply module 810 is connected to the extraction module 900. The water supply module 810 is used to provide a water source for the extraction process to ensure the continuity and stability of the extraction process. The milk frothing module 820 can provide users with the function of making cappuccino and other milk-containing coffee, thereby expanding the scope of use of the coffee machine.

[0100] like Figure 13-Figure 15 As shown, in this embodiment, the milk frothing module 820 includes a milk pump 821, a milk boiler 822, an air pump 823 and a mixing tube assembly 824. The milk pump 821 is connected to the inlet of the milk boiler 822 through a first milk delivery pipeline 825, and the outlet of the milk boiler 822 is connected to the mixing tube assembly 824 through a second milk delivery pipeline 826 to form a complete milk delivery passage.

[0101] The mixing tube assembly 824 includes an inlet section 8241, a contraction section 8242 and an outlet section 8243 which are arranged in sequence. One end of the inlet section 8241 is connected to the second milk delivery pipe 826, and the other end is smoothly connected to the inlet of the contraction section 8242. The contraction section 8242 adopts a conical structure design, and its outlet inner diameter is smaller than the inlet inner diameter. An annular gap is provided between the outlet of the contraction section 8242 and the outlet section 8243. When milk flows at a high speed here, a negative pressure area B is formed between the outlet of the contraction section 8242 and the outlet section 8243.

[0102] The outlet of the air pump 823 is connected to the mixing tube assembly 824 through the gas delivery pipe 8231. Specifically, the outlet end of the gas delivery pipe 8231 is inserted into the mixing tube assembly 824 and extends to the position where the negative pressure area A is located.

[0103] When working, the milk pump 821 (i.e., the gear pump) extracts milk from the external milk storage container 200 and delivers it to the milk boiler 822 through the first milk delivery pipe for heating. The heated milk enters the inlet section 8241 of the mixing tube assembly 824 through the second milk delivery pipe 826 under pressure. When the milk flows through the contraction section 8242, the cross-sectional area decreases and the flow rate increases, resulting in a negative pressure effect at the negative pressure area A. At the same time, the air pump 823 starts and delivers air to the negative pressure area A through the gas delivery pipe 8231. Under the action of negative pressure, the air is quickly entrained and fully mixed by the milk flow, thereby forming a fine and dense milk foam at the outlet section 8243. Through the above-mentioned structural design, the milk foam module 820 of this embodiment can effectively mix air with milk to produce high-quality milk foam.

[0104] In this embodiment, the heated milk is fully mixed with the air in the mixing tube assembly 824. The introduction of air completely relies on the negative pressure effect generated by the contraction section 8242 and the auxiliary air supply of the air pump 823, and no high-temperature steam is required. This is essentially different from the traditional coffee machine that uses a high-temperature steam boiler 910 to extract milk to achieve milk foam preparation. The milk foam preparation scheme of this embodiment has the following advantages: it avoids the adverse effects of high-temperature steam on the quality of milk and can prepare milk foam with a better taste; the heating temperature of the milk can be flexibly adjusted to meet the different needs of hot and cold drinks; by controlling the air supply of the air pump 823, the foaming ratio of the milk foam can be adjusted to prepare milk foam of different consistencies.

[0105] In this embodiment, the milk boiler 822 is an instant heating design, which can heat the milk to a temperature range of 55-65° C. This temperature range can ensure sufficient heating without destroying the nutritional components of the milk. The heated milk is transported to the inlet of the mixing pipe assembly 824 through the valve body (three-way valve).

[0106] In this embodiment, a filter structure is also provided at the outlet of the mixing tube assembly 824. The filter has a dual function: on the one hand, it can even out the size of bubbles after the gas-liquid mixture, thereby improving the uniformity of the milk foam texture; on the other hand, it can reduce the fluid ejection speed and prevent splashing. By controlling the opening time of the solenoid valve (not shown in the drawings) connected to the air pump 823, the amount of air intake can be adjusted, thereby controlling the density of the milk foam.

[0107] like Fig.16 As shown, in this embodiment, the milk storage container 200 is specifically a small refrigeration device, and the internal temperature is maintained in the range of 2-5°C to ensure the shelf life of milk. The milk storage container 200 is arranged outside the coffee machine 100, and its side wall is provided with a hose interface (not shown in the drawings), which can be connected to the milk pump 821 of the milk frothing module 820 through the hose to form a complete milk supply system.

[0108] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A coffee machine suitable for capsules, characterized in that: include: A material storage module, the material storage module comprising a turntable assembly, a plurality of cargo lanes being arranged circumferentially on the turntable assembly, each of the cargo lanes being used to store a plurality of capsules; A feeding module, wherein the feeding module is arranged below the storage module, and the feeding module comprises a guide seat and a fixed seat arranged at the bottom of the guide seat, the guide seat is provided with a cavity, and the fixed seat is provided with a first channel connected with the extraction module; the cavity can reciprocate between a first position and a second position with the rotation of the guide seat, wherein the cavity is used to receive capsules released from the cargo channel in the first position, and release the capsules to the first channel when rotating to the second position.

2. The coffee machine according to claim 1, characterized in that The cargo channel comprises a material storage channel extending in a vertical direction, and limiting portions are arranged on both sides of the material storage channel; and the spacing between the limiting portions is smaller than the diameter of the opening end of the capsule.

3. The coffee machine according to claim 1, characterized in that The material storage module also includes: A limiting mechanism, the limiting mechanism comprising a plurality of supporting components, the supporting components being arranged corresponding to each of the cargo lanes; The support assembly comprises: a guide member, which is arranged at the bottom of the turntable assembly and has a through guide hole; and a support member, which is inserted into the guide hole, and is in a first state when the support member is extended relative to the cargo channel, and is in a second state when the support member is retracted relative to the cargo channel; The support member is used to support the capsules in the cargo channel in the first state, and allows the capsule at the bottom of the cargo channel to be released in the second state.

4. The coffee machine according to claim 3, characterized in that The limiting mechanism also includes: A toggle assembly, the toggle assembly is disposed below the turntable assembly and is used to drive each of the supporting members to move to the second state; An elastic return member, two ends of which are respectively connected to the guide member and the support member, and is used to drive the support member to return to the first state.

5. The coffee machine according to claim 1, characterized in that Through holes are provided on opposite sides of the cavity, and the feeding module further comprises: A first through-beam sensor, which is disposed at the first position and is used to detect whether there is a capsule in the cavity through the through hole; and A second through-beam sensor is disposed at the second position and is used for detecting whether the capsule has been released into the first channel through the through hole.

6. The coffee machine according to claim 5, characterized in that The feeding module further includes a feeding drive mechanism, which is used to control the guide seat to reciprocate between the first position and the second position according to the detection signals of the first and second beam sensors.

7. The coffee machine according to claim 1, characterized in that A partition structure is provided between the storage module and the feeding module, and the partition structure can extend into a gap between a lowermost capsule and an upper capsule in the cargo channel.

8. The coffee machine according to claim 7, characterized in that The material storage module also includes: A cargo arrival sensor and an origin position sensor are used to detect the rotation position of the turntable assembly respectively; A plurality of first induction sheets, wherein the first induction sheets are arranged at the bottom of the turntable assembly, and each of the cargo lanes is provided with a corresponding first induction sheet; and A second induction sheet, the second induction sheet is arranged at the bottom of the turntable assembly and is staggered with the first induction sheet; Among them, when the turntable assembly drives the cargo lane to rotate to the first position, the first sensing sheet can be detected by the cargo arrival sensor; when the turntable assembly rotates to the point where the second sensing sheet is detected by the origin position sensor, the partition structure is located between two adjacent cargo lanes.

9. The coffee machine according to claim 1, characterized in that The extraction module comprises: Boilers; and An extraction seat, the extraction seat is connected to the boiler, a second channel connected to the first channel is provided on the top of the extraction seat, and the extraction seat is used to accommodate the capsule and extract the capsule; the extraction seat and the boiler are of an integrated design.

10. The coffee machine according to any one of claims 1 to 9, characterized in that: Also includes: A milk frothing module, the milk frothing module comprising a milk pump, a milk boiler, an air pump and a mixing tube assembly, the milk boiler being connected to the milk pump and the mixing tube assembly respectively, the mixing tube assembly comprising an inlet section, a contraction section and an outlet section arranged in sequence, the outlet inner diameter of the contraction section being smaller than the inlet inner diameter, a gap being provided between the outlet of the contraction section and the outlet section to form a negative pressure zone, and the gas delivery pipe of the air pump being passed through the mixing tube assembly to deliver air to the negative pressure zone.

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