Coffee machine with integrated press-powder extraction

Abstract

The application discloses a kind of full-automatic coffee machine of powder pressing extraction integration, including powder pressing drive mechanism and hopper moving mechanism.Press powder drive mechanism adopts screw nut transmission pair formed by spinning gear and spinning support, drive powder pressing head to lift steadily, spinning support interior is integrated to pass water channel, and the end face of powder pressing head is provided with water outlet, and water is directly extracted after powder pressing in place;The cooperation of rotating drive assembly and trajectory slot is used in the hopper moving mechanism, and the linear sliding of powder receiving support is converted from the rotary swing, to drive the hopper assembly to automatically switch between powder receiving station and extraction station.The application realizes the automation operation of powder receiving, powder pressing and extraction in the same process, without transferring powder cake, and the extraction stability is high.The overall structure is compact, the transmission precision is high, and it is suitable for the compact design requirements of household and small commercial coffee machines.

Description

Technical Field

[0001] This invention relates to the field of coffee machine technology, specifically to a coffee machine with an integrated tamping and extraction structure. Background Technology

[0002] The extraction quality of espresso is directly related to the compactness and uniformity of the coffee grounds. Traditional semi-automatic coffee machines rely on manual tamping, which requires a high level of operator skill. It is difficult to maintain consistent tamping pressure and evenness, and the operation process is cumbersome and inefficient, making it difficult to meet the needs of continuous brewing.

[0003] Most existing coffee machines with automatic tamping functions use separate tamping and extraction mechanisms. After tamping, the coffee grounds must be transferred to the extraction station for extraction. This not only increases the complexity and size of the machine but also easily damages the coffee puck shape during the transfer process, leading to uneven extraction and inconsistent flavor. Furthermore, existing automatic tamping mechanisms often use cylinder-driven or linkage-driven lifting structures, which generally suffer from low transmission accuracy, poor tamping stability, and large axial space requirements, making them unsuitable for the compact design requirements of small home or commercial tabletop coffee machines.

[0004] On the other hand, in integrated coffee grinding and extraction equipment, after the coffee powder is ground and output by the grinding mechanism, it needs to be received by the powder receiving container and then transferred to the extraction station. Most equipment uses manual switching between the powder receiving and extraction stations, which is cumbersome and inefficient. Some automatic powder receiving structures use linear cylinders or linear motors for direct drive, resulting in a large overall size and complex transmission structure, making it difficult to adapt to the narrow internal space of coffee equipment. Moreover, the powder receiving containers are mostly fixed installations, making disassembly and cleaning inconvenient. The lack of precise detection of the start and end positions of the station can easily lead to station misalignment, affecting the accuracy of powder receiving and extraction.

[0005] In summary, existing technologies cannot simultaneously achieve automatic powder receiving station switching, powder pressing and extraction in the same station, and compact structure. There is still room for improvement in the overall automation level and extraction quality.

[0006] To address the above issues, a coffee machine with an integrated tamping and extraction structure is provided. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a coffee machine with an integrated tamping and extraction structure to overcome the shortcomings of the prior art.

[0008] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0009] A coffee machine with an integrated tamping and extraction structure, characterized in that it includes a coffee machine body, a tamping head, a funnel assembly, a tamping drive mechanism, and a fixed bracket; the tamping drive mechanism is used to drive the tamping head to move up and down along the tamping direction, and includes a drive component, a spinning gear, and a spinning bracket; the spinning gear is circumferentially rotatable and axially limited on the coffee machine body; the spinning bracket is slidable along the tamping direction and circumferentially limited, the spinning gear is coaxially sleeved on the outside of the spinning bracket, and the spinning gear and the spinning bracket are connected by a threaded drive; the drive component is driven by the spinning gear to drive the spinning bracket to perform axial reciprocating motion; the tamping head is fixed at the end of the spinning bracket facing the funnel assembly, the spinning bracket has a water passage inside, and the tamping end face of the tamping head has a water outlet communicating with the water passage; after the tamping head moves down with the spinning bracket to compact the coffee powder, the extraction water can be output through the water passage and the water outlet to complete the extraction.

[0010] It also includes a funnel moving mechanism, which comprises a powder receiving bracket, a funnel driving assembly, and a positioning detection assembly. The fixed bracket is mounted on the coffee machine body and has a sliding groove. The powder receiving bracket is slidably mounted within the sliding groove. The funnel assembly is detachably mounted on the powder receiving bracket and moves synchronously with it along the sliding groove to switch between a powder receiving position and an extraction position. The funnel driving assembly is connected to the powder receiving bracket and drives it to reciprocate along the sliding groove. The positioning detection assembly detects the positioning signal of the powder receiving bracket. The funnel driving assembly is configured to switch its operating direction based on the positioning signal fed back by the positioning detection assembly, thereby driving the powder receiving bracket to move in the opposite direction.

[0011] The outer wall of the spinning bracket is provided with an external thread, and the inner wall of the spinning gear is provided with an internal thread that matches the external thread. The two together form a lead screw and nut transmission pair.

[0012] The spinning gear is assembled inside the fixed bracket to achieve free circumferential rotation and axial position limitation; the spinning bracket slides axially through the central guide channel of the fixed bracket.

[0013] The spinning support is a hollow cylindrical structure. Symmetrical through slots extending axially are provided on both sides of the spinning support, and the end of the spinning support away from the funnel assembly is an open structure. A radial positioning element is provided at the central guide channel of the fixed support. The radial positioning element extends into the inner cavity of the spinning support, and the maximum radial dimension of the radial positioning element is smaller than the inner cavity diameter of the spinning support.

[0014] The radial positioning component has symmetrical connecting plates on its sidewalls. The connecting plates correspond one-to-one with the through slots and are inserted into the through slots. When the spinning support moves axially, the connecting plates and the through slots form a relative sliding fit to provide radial positioning and circumferential limiting for the spinning support. The through slots have a guide structure at the opening at the end away from the funnel assembly.

[0015] The powder pressing drive mechanism is also equipped with a limit detection component, which includes two micro switches arranged vertically. The two micro switches correspond to the upper limit position and the lower limit position of the spinning bracket, respectively, and are used to detect the position of the spinning bracket to control the start, stop and reset of the drive component.

[0016] The funnel drive assembly is a rotary drive assembly, including a power component and a rotary shaft. One end of the rotary shaft is connected to the output end of the power component and reciprocates around this connection end as the rotation axis. A drive protrusion is provided at the free end of the rotary shaft, and a track groove is provided on the powder receiving bracket corresponding to the position of the drive protrusion. The drive protrusion extends into the track groove. When the rotary shaft reciprocates, the drive protrusion moves relative to the track groove and, through interference with the groove wall, drives the powder receiving bracket to reciprocate along the sliding groove.

[0017] The extension direction of the trajectory groove is perpendicular to the extension direction of the sliding groove.

[0018] The driving protrusion is a cylindrical protrusion structure, and the track groove is a long strip through groove. The outer diameter of the cylindrical protrusion and the width of the track groove are in clearance fit.

[0019] The above technical solution has the following beneficial effects:

[0020] This invention relates to a coffee machine with an integrated tamping and extraction structure. The tamping head integrates a water channel and outlet, allowing for direct extraction without the need to transfer the coffee puck, thus completely avoiding shape damage during puck transfer and ensuring uniform extraction and consistent flavor. It also eliminates the need for a separate extraction head, simplifying the overall machine components. A screw-nut transmission pair consisting of a spinning gear and a spinning bracket converts rotary motion into linear lifting motion, reducing axial space requirements and adapting to the compact design needs of home and small commercial coffee machines. The "rotational oscillation + trajectory groove" transmission method transforms the motor's rotational oscillation into linear sliding of the powder receiving bracket, reducing lateral space requirements and adapting to limited installation space within the coffee machine. It boasts a high degree of automation and is convenient to operate and maintain. Attached Figure Description

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of the coffee machine of the present invention;

[0024] Figure 2 This is a longitudinal sectional view of the present invention;

[0025] Figure 3 This is a longitudinal enlarged cross-sectional view of the powder extraction structure and funnel moving structure of the present invention;

[0026] Figure 4 This is a longitudinal enlarged cross-sectional view of the powder extraction structure and funnel moving structure of the present invention from another angle;

[0027] Figure 5 This is an exploded view of the powder extraction structure and the funnel moving structure of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Coffee machine body; 14. Spinning gear; 15. Spinning bracket; 151. Tamper head; 152. Water passage; 153. Water outlet; 154. Through groove; 16. DC motor assembly; 17. Linkage gear; 2. Grinding assembly; 7. Fixed bracket; 71. Central mounting cavity; 72. Central guide channel; 721. Radial positioning component; 722. Connecting plate; 73. Powder receiving bracket; 731. Funnel mounting groove; 732. Positioning part; 733. Track groove; 74. Sliding groove; 8. Funnel assembly; 9. Funnel drive assembly; 91. Synchronous motor; 92. Rotating shaft; 921. Drive protrusion; 93. Micro switch. Detailed Implementation

[0029] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] See Figures 1-5 As shown, the present invention discloses a coffee machine with an integrated tamping and extraction structure, including a grinding assembly 2, a tamping drive mechanism, and a funnel moving mechanism disposed on the coffee machine body 1, which can automatically complete the entire process of coffee grinding and receiving, station transfer, tamping and forming, and high-pressure extraction.

[0031] The powder pressing drive mechanism is used to drive the powder pressing head 151 to reciprocate vertically to complete the powder pressing and resetting actions. It includes a drive component, a linkage gear 17, a spinning gear 14, a spinning bracket 15, the powder pressing head 151, and a limit detection component.

[0032] The fixed bracket 7 serves as a shared mounting base for the powder pressing drive mechanism and the funnel moving mechanism, and has a central mounting cavity 71 and a central guide channel 72 inside. The spinning gear 14 is assembled in the internal mounting cavity of the fixed bracket 7. The fixed bracket 7 provides axial support and limits the spinning gear 14, so that the spinning gear 14 can only rotate circumferentially around its own axis and cannot be displaced axially.

[0033] The spinning bracket 15 is slidably inserted vertically into the central guide channel 72 of the fixed bracket 7, and the spinning gear 14 is coaxially sleeved on the outside of the spinning bracket 15. The outer wall of the spinning bracket 15 is provided with external threads, and the inner wall of the spinning gear 14 is provided with internal threads that are compatible with the external threads. The two mesh with each other to form a lead screw and nut transmission pair.

[0034] In this embodiment, to further improve the smoothness of lifting and lowering, axially extending through slots 154 are symmetrically provided on both sides of the spinning bracket 15, and the upper end of the spinning bracket 15 away from the funnel assembly 8 is an open structure to facilitate the assembly of the spinning bracket 75 and the funnel assembly 8. The through slots 154 have flared openings at the opening positions as guide structures. Correspondingly, the fixed bracket 7 has a radial positioning member 27 in the central guide channel 72. The radial positioning member 27 extends into the interior of the spinning bracket 15 and fits against the inner wall of the spinning bracket 15. The fixed bracket 7 is also provided with a connecting plate 28, which passes through the through slot 241 on the side wall of the spinning bracket 15 and is fixedly connected to the radial positioning member 27. When the spinning bracket 15 reciprocates axially, the connecting plate 28 can slide relative to it in the through slot 241, so that the radial positioning member 27 always provides radial support and positioning for the spinning bracket 15, avoiding radial sway of the spinning bracket 15, and further improving the coaxiality and running smoothness of the spinning bracket 15 during the lifting and lowering process. The through slot 241 has a guide structure at the opening at the upper end of the spinning bracket 15 to facilitate the insertion of the connecting plate 28 and the radial positioning component 27 during assembly.

[0035] In this embodiment, the driving component is a DC motor assembly 16, which is fixedly installed on the side of the fixed bracket 7. Its output shaft is connected to a linkage gear 17, which meshes with the teeth on the outer periphery of the spinning gear 14. The DC motor assembly 16 drives the spinning gear 14 to rotate through gear reduction transmission, which has the advantages of large output torque, controllable speed, and stable operation, and can ensure the stability of the powder pressing force.

[0036] When the DC motor assembly 16 operates in the forward or reverse direction, it drives the spinning gear 14 to rotate circumferentially through the linkage gear 17. Under the action of the threaded transmission, the rotational motion of the spinning gear 14 is converted into the axial reciprocating linear motion of the spinning bracket 15, thereby driving the powder pressing head 151 to complete the pressing down and lifting reset actions.

[0037] The tamping head 151 is fixedly installed at the lower end of the spinning frame 15 and rises and falls synchronously with the spinning frame 15. A water passage 152 is provided inside the spinning frame 15, and several water outlets 153 communicating with the water passage 152 are provided on the tamping end face of the tamping head 151, with the multiple water outlets 153 evenly distributed on the tamping end face. An external extraction water path can be connected through the upper end of the spinning frame 15, communicating with the internal water passage 152. Extracted water flows evenly from each water outlet 153 through the water passage 152 to the surface of the coffee powder, ensuring uniform extraction.

[0038] The limit detection component is used to precisely control the lifting stroke of the spinning support 15. It includes two microswitches arranged vertically, both mounted on the fixed bracket 7, corresponding to the upper and lower limit positions of the spinning support 15, respectively. When the spinning support 15 rises to the highest reset position, the upper microswitch is triggered, and the control system controls the DC motor assembly 16 to stop rotating. When the spinning support 15 descends to the powder pressing position, the lower microswitch is triggered, and the control system controls the DC motor assembly 16 to stop pressing and maintain pressure. Through the stroke detection of the dual microswitches, the powder pressing stroke can be precisely controlled, ensuring consistent compaction of each pressing and accurate reset position.

[0039] During operation, the tamping head 151 descends with the swivel support 15 to its final position, and the lower end face compacts the coffee powder in the funnel assembly 8 to form a coffee cake. After the powder is tamped, there is no need to move the work station. The extraction water path is directly opened, and high-pressure hot water is evenly applied to the coffee cake through the water passage 152 and the water outlet 153 to complete the extraction operation, realizing the integrated operation of tamping and extraction in the same work station.

[0040] The funnel moving mechanism is used to drive the funnel assembly 8 to automatically switch between the powder receiving station and the extraction station. It mainly includes the powder receiving support 73, the funnel assembly 8, the funnel driving assembly 9, and the arrival detection assembly.

[0041] The lower inner side of the fixed bracket 7 is symmetrically provided with two horizontally extending sliding grooves 74. In this embodiment, the sliding grooves 74 are guide groove structures. The left and right edges of the powder receiving bracket 73 are correspondingly embedded in the two sliding grooves 74, so that the powder receiving bracket 73 can slide stably in a straight line along the extension direction of the sliding grooves 74.

[0042] The powder receiving bracket 73 has an opening at the insertion end of the funnel assembly 8, and symmetrical funnel mounting grooves 731 are provided on the inner sidewalls of both sides of the powder receiving bracket 73. The upper edge of the funnel assembly 8 is inserted into the funnel mounting groove 731, thereby achieving detachable assembly. The funnel mounting groove 731 is also provided with a positioning part 732, which prevents the funnel assembly 8 from moving further when it is inserted into the funnel mounting groove 731 and installed in place, so as to position the working position of the funnel assembly 8. The funnel mounting groove 731 has a flared opening on the insertion side as a guide structure to facilitate the quick insertion of the funnel assembly 8. After assembly, the funnel assembly 8 and the powder receiving bracket 73 remain relatively fixed, and can move synchronously with the powder receiving bracket 73, thereby switching between the powder receiving position directly below the powder outlet of the upper grinding component 2 and the powder pressing and extraction position directly below the powder pressing head 151.

[0043] The funnel mounting groove 731 can also be provided with a flared opening at the insertion end of the funnel assembly 8 as a guide structure to reduce the accuracy requirements of assembly alignment.

[0044] In this embodiment, the funnel drive assembly 9 is a rotary drive assembly, including a power component and a rotary shaft 92. The power component is a synchronous motor 91, which is fixedly installed on the side of the fixed bracket 7. One end of the rotary shaft 92 is fixedly connected to the output shaft of the synchronous motor 91, so that the rotary shaft 92 can reciprocate around the output shaft of the synchronous motor 91. The swing plane of the rotary shaft 92 is parallel to the sliding plane of the powder receiving bracket 73 to ensure that the transmission direction is consistent.

[0045] A driving protrusion 921 is provided at the free end of the rotating shaft 92. The driving protrusion 921 is a cylindrical protrusion, and its axis is parallel to the rotation axis of the rotating shaft 92. A long strip-shaped track groove 733 is opened on the side of the powder receiving bracket 73 corresponding to the position of the driving protrusion 921. The extension direction of the track groove 733 is perpendicular to the extension direction of the sliding groove 74. The driving protrusion 921 extends into the track groove 733, and the outer diameter of the driving protrusion 921 is in clearance fit with the groove width of the track groove 733 to ensure smooth relative sliding.

[0046] The positioning detection component includes two microswitches 93, both of which are fixedly mounted on the fixed bracket 7, corresponding to the two extreme positions of the rotating shaft 92 during the reciprocating stroke of the powder receiving bracket 73, namely the powder receiving station and the extraction station.

[0047] When the synchronous motor 91 drives the rotating shaft 92 to swing, the driving protrusion 921 moves in an arc with the rotating shaft 92 and moves relative to it along the length of the track groove 733. The driving protrusion 921 interferes with the groove wall of the track groove 733, converting the power of the rotational swing into the linear sliding force of the powder receiving bracket 73 along the sliding groove, thereby driving the powder receiving bracket 73 and the funnel assembly 8 to perform reciprocating linear motion.

[0048] The specific workflow of a coffee machine includes:

[0049] 1. Initial standby state: The spinning support 15 drives the powder pressing head 151 to the upper limit position, triggering the micro switch above, and the driving component stops working; the funnel assembly 8 is located at the extraction station, and the whole machine is in standby state.

[0050] 2. Automatic coffee powder collection: After the coffee powder collection command is triggered, the synchronous motor 91 rotates in the forward direction, driving the rotating shaft 92 to swing in the forward direction. Through the cooperation of the drive protrusion 921 and the track groove 733, the coffee powder collection bracket 73 is pushed to move along the sliding groove 74 to the coffee powder collection station. When the coffee powder collection bracket 73 moves to the coffee powder collection station below the grinding assembly 2, the rotating shaft 92 triggers the micro switch 93 at the corresponding position, and the synchronous motor stops running. At this time, the funnel assembly 8 is aligned with the coffee powder outlet of the grinding assembly 2 above to receive the ground coffee powder.

[0051] 3. Station transfer: After the powder is collected, the synchronous motor 91 rotates in reverse, driving the rotating shaft 92 to swing in the opposite direction, pulling the powder collecting bracket 73 and the funnel assembly 8 to move towards the extraction station; when it moves to the extraction station, the rotating shaft 92 triggers the micro switch 93 on the other side, the synchronous motor stops, and the funnel assembly 8 is directly below the powder pressing head 151.

[0052] 4. Automatic tamping: After receiving the extraction station arrival signal, the control system starts the DC motor assembly 16 to rotate forward, which drives the spinning gear 14 to rotate circumferentially through the linkage gear 17. Under the action of the screw drive, the spinning bracket 15 drives the tamping head 151 to move vertically downward, and the lower end face of the tamping head 151 gradually compacts the coffee powder in the funnel assembly 8. When the spinning bracket 15 moves down to the set tamping position, it triggers the micro switch below, the DC motor assembly 16 stops rotating, and the tamping head 151 maintains the downward pressure holding state, completing the tamping.

[0053] 5. Extraction operation: After the coffee powder is tamped in place, the control system opens the extraction water path. High-pressure hot water flows out evenly through the water passage 152 inside the swirl holder 15 and multiple water outlets 153 on the tamping head 151, penetrating the coffee powder to complete the extraction. The extracted coffee liquid flows out from below the funnel assembly 8 to the receiving container.

[0054] 6. Reset and Standby: After extraction is completed, the control system controls the DC motor assembly 16 to reverse and the spinning gear 14 to rotate in the opposite direction, driving the spinning support 15 and the tamping head 151 to move upward and reset; when the spinning support 15 moves upward to the initial position, it triggers the micro switch above, the DC motor assembly 16 stops running, and the whole machine returns to the standby state. At this time, the funnel assembly 8 can be pulled out to clean the coffee residue.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A coffee machine with an integrated tamping and extraction structure, characterized in that, The coffee machine includes a body, a tamping head, a funnel assembly, a tamping drive mechanism, and a fixed bracket. The tamping drive mechanism drives the tamping head to move up and down along the tamping direction and includes a drive component, a spinning gear, and a spinning bracket. The spinning gear is circumferentially rotatable and axially limited on the coffee machine body. The spinning bracket is slidable along the tamping direction and circumferentially limited. The spinning gear is coaxially sleeved on the outside of the spinning bracket, and the spinning gear and the spinning bracket are connected by a threaded drive. The drive component is driven by the spinning gear to drive the spinning bracket to perform axial reciprocating motion. The tamping head is fixed at the end of the spinning bracket facing the funnel assembly. The spinning bracket has a water passage inside, and the tamping end face of the tamping head has a water outlet communicating with the water passage. After the tamping head descends with the spinning bracket to compact the coffee powder, the extraction water can be output through the water passage and the water outlet to complete the extraction.

2. The coffee machine with an integrated tamping and extraction structure according to claim 1, characterized in that, It also includes a funnel moving mechanism, which comprises a powder receiving bracket, a funnel driving assembly, and a positioning detection assembly. The fixed bracket is mounted on the coffee machine body and has a sliding groove. The powder receiving bracket is slidably mounted within the sliding groove. The funnel assembly is detachably mounted on the powder receiving bracket and moves synchronously with it along the sliding groove to switch between a powder receiving position and an extraction position. The funnel driving assembly is connected to the powder receiving bracket and drives it to reciprocate along the sliding groove. The positioning detection assembly detects the positioning signal of the powder receiving bracket. The funnel driving assembly is configured to switch its operating direction based on the positioning signal fed back by the positioning detection assembly, thereby driving the powder receiving bracket to move in the opposite direction.

3. The coffee machine with an integrated tamping and extraction structure according to claim 1, characterized in that, The outer wall of the spinning bracket is provided with an external thread, and the inner wall of the spinning gear is provided with an internal thread that matches the external thread. The two together form a lead screw and nut transmission pair.

4. The coffee machine with an integrated tamping and extraction structure according to claim 3, characterized in that, The spinning gear is assembled inside the fixed bracket to achieve free circumferential rotation and axial position limitation; the spinning bracket slides axially through the central guide channel of the fixed bracket.

5. The coffee machine with an integrated tamping and extraction structure according to claim 4, characterized in that, The spinning support is a hollow cylindrical structure. Symmetrical through slots extending axially are provided on both sides of the spinning support, and the end of the spinning support away from the funnel assembly is an open structure. A radial positioning element is provided at the central guide channel of the fixed support. The radial positioning element extends into the inner cavity of the spinning support, and the maximum radial dimension of the radial positioning element is smaller than the inner cavity diameter of the spinning support.

6. The coffee machine with an integrated tamping and extraction structure according to claim 5, characterized in that, The radial positioning component has symmetrical connecting plates on its sidewalls. The connecting plates correspond one-to-one with the through slots and are inserted into the through slots. When the spinning support moves axially, the connecting plates and the through slots form a relative sliding fit to provide radial positioning and circumferential limiting for the spinning support. The through slots have a guide structure at the opening at the end away from the funnel assembly.

7. The coffee machine with an integrated tamping and extraction structure according to claim 1, characterized in that, The powder pressing drive mechanism is also equipped with a limit detection component, which includes two micro switches arranged vertically. The two micro switches correspond to the upper limit position and the lower limit position of the spinning bracket, respectively, and are used to detect the position of the spinning bracket to control the start, stop and reset of the drive component.

8. The coffee machine with an integrated tamping and extraction structure according to claim 2, characterized in that, The funnel drive assembly is a rotary drive assembly, including a power component and a rotary shaft; one end of the rotary shaft is connected to the output end of the power component and reciprocates around the connection end as the rotation axis; a drive protrusion is provided at the free end of the rotary shaft, and a track groove is provided on the powder receiving bracket corresponding to the position of the drive protrusion, with the drive protrusion extending into the track groove; when the rotary shaft reciprocates, the drive protrusion moves relative to the track groove, causing the powder receiving bracket to reciprocate along the sliding groove.

9. The coffee machine with an integrated tamping and extraction structure according to claim 8, characterized in that, The extension direction of the trajectory groove is perpendicular to the extension direction of the sliding groove.

10. The coffee machine with an integrated tamping and extraction structure according to claim 9, characterized in that, The driving protrusion is a cylindrical protrusion structure, and the track groove is a long strip through groove. The outer diameter of the cylindrical protrusion and the width of the track groove are in clearance fit.

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