Automatic coffee brewing machine

Abstract

The utility model belongs to the technical field of coffee machines, and discloses an automatic coffee brewing machine which comprises a machine frame, a powder grinding mechanism, a powder pressing brewing mechanism, a bearing piece, a filter and a driving mechanism, and the powder grinding mechanism, the powder pressing brewing mechanism, the bearing piece, the filter and the driving mechanism are arranged on the machine frame. The grinding mechanism and the powder pressing and brewing mechanism are arranged in sequence; the bearing part is movably arranged on the rack, and the filter is detachably arranged on the bearing part; the output end of the driving mechanism is connected with the bearing part, and when the filter is placed on the bearing part, the driving mechanism can drive the filter on the bearing part to move to the grinding mechanism or the powder pressing and brewing mechanism. According to the automatic coffee brewing machine, the automatic grinding and brewing process of coffee can be achieved, the filter can be detached to be cleaned after the coffee brewing process is completed, and the problem that coffee residues remain on the filter can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machine technology, specifically relating to an automatic coffee brewing machine. Background Technology

[0002] As living standards improve, more and more people are pursuing high-quality freshly ground coffee. The process of making freshly ground coffee involves grinding and brewing coffee beans. To meet this demand, coffee machines with built-in grinders have emerged on the market. However, due to the complexity of their internal structure and space constraints, brewing and grinding are usually done separately, requiring users to manually pour the ground coffee into the brewing chamber. This process is cumbersome and time-consuming. To free users' hands, fully automatic coffee machines with built-in grinders have also appeared on the market. These machines automatically control the grinding mechanism to grind the coffee beans and automatically feed the ground coffee into the brewing unit for brewing. After brewing, the internal cleaning mechanism automatically cleans the brewing unit. In short, users only need to add coffee beans, and the fully automatic coffee machine will automatically produce a cup of coffee. Users do not need to perform any other operations; it is simple to operate and highly efficient. However, since all the components of the brewing device are fixed inside the coffee machine and are automatically cleaned by the cleaning mechanism, long-term use can easily lead to problems with the brewing chamber not being cleaned properly, which is difficult to detect. Coffee residue left in the brewing chamber can not only block the flow of coffee liquid, but also affect the flavor of the coffee brewed later, thus affecting the user experience. Utility Model Content

[0003] The purpose of this invention is to provide an automatic coffee brewing machine that can automatically complete the grinding and brewing process and is easy to clean coffee grounds.

[0004] The following technical solutions are used to achieve the above objectives.

[0005] The first aspect of this utility model provides an automatic coffee brewing machine, which includes a frame and a grinding mechanism, a tamping and brewing mechanism, a carrier, a filter and a drive mechanism disposed on the frame;

[0006] The grinding mechanism and the pressing and brewing mechanism are arranged in sequence.

[0007] The carrier is movably mounted on the frame, and the filter is detachably mounted on the carrier;

[0008] The output end of the drive mechanism is connected to the carrier. When the filter is placed on the carrier, the drive mechanism can drive the filter on the carrier to move to the grinding mechanism or the pressing and brewing mechanism.

[0009] In some embodiments, the carrier is provided with a locking hole, which is a hole structure that is recessed inward along one side edge of the carrier to form an opening on one side; the filter is detachably accommodated in the locking hole, and the filter can be moved out of the locking hole through the opening.

[0010] In some embodiments, the orientation of the opening intersects with the direction of movement of the carrier.

[0011] In some embodiments, the carrier includes a first connecting plate, a second connecting plate, and a third connecting plate, wherein the second connecting plate and the third connecting plate are perpendicularly connected to the first connecting plate, and the first connecting plate, the second connecting plate, and the third connecting plate cooperate to form a U-shaped card hole with the opening.

[0012] In some embodiments, the filter includes a filter cartridge and a handle, the handle being disposed on the body of the filter cartridge; a retaining body is disposed at the top of the filter cartridge, the retaining body being detachably attached to the edge of the retaining hole, and the filter cartridge can be moved out through the opening by rotating and moving the handle.

[0013] In some embodiments, the drive mechanism includes a rotary drive device and a transmission device; the output end of the rotary drive device is connected to the carrier through the transmission device to drive the carrier to reciprocate along the extension direction from the grinding mechanism to the pressing and brewing mechanism.

[0014] In some embodiments, the transmission device includes a gear and a rack, the output end of the rotary drive device is connected to the gear and drives the gear to rotate, the rack is disposed on the carrier, and the gear and rack are meshed.

[0015] In some embodiments, the frame is provided with a guide extending along the grinding mechanism to the pressing and brewing mechanism, and the carrier is provided with a sliding member adapted to the guide, the carrier being slidably mounted on the guide via the sliding member.

[0016] In some embodiments, the pulverizing brewing mechanism includes a brewing body, a piston, and a piston drive mechanism;

[0017] The piston drive mechanism is disposed on the brewing body, and the output end of the piston drive mechanism is connected to the piston. When the filter reaches the position of the pressing brewing mechanism, the piston drive mechanism drives the piston to extend into or out of the filter.

[0018] In some embodiments, the piston has a hollow water inlet channel along its central axis, and the piston has multiple water outlet holes at the end near the filter that connect the water inlet channel and the filter.

[0019] In some embodiments, the tamping and brewing mechanism is provided with a first positioning device that cooperates with the filter. When the filter reaches the position of the tamping and brewing mechanism, the filter is connected to the tamping and brewing mechanism through the first positioning device; and / or,

[0020] The grinding mechanism is provided with a second positioning device that cooperates with the filter. When the filter reaches the position of the grinding mechanism, the filter is connected to the grinding mechanism through the second positioning device.

[0021] In some embodiments, the automatic coffee brewing machine further includes a coffee weighing device; the coffee weighing device includes a moving part and a weighing support.

[0022] The movable component has a placement position; the filter is detachably placed in the placement position;

[0023] The movable component is movably disposed between the carrier and the weighing bracket, and the movable component can move to a first position or a second position; when the movable component is in the first position, the movable component is detached from the weighing bracket and supported by the carrier; when the movable component is in the second position, the movable component is detached from the carrier and supported by the weighing bracket for weighing operation.

[0024] In some embodiments, a first limit switch is provided on the frame near the grinding mechanism, so that the filter can contact the first limit switch when it moves to the grinding mechanism; a second limit switch is provided on the frame near the pressing and brewing mechanism, so that the filter can contact the second limit switch when it moves to the pressing and brewing mechanism.

[0025] The technical solution provided by this utility model has the following advantages and effects:

[0026] This automatic coffee brewing machine features a detachable connection between the filter and the carrier, allowing for quick assembly, disassembly, and cleaning of the filter. When the filter is mounted on the carrier, the drive mechanism moves the filter sequentially to the grinding and brewing mechanisms to perform grinding and brewing operations. Users simply need to load the filter onto the carrier to achieve automatic coffee grinding and brewing, resulting in a simple structure and convenient operation. Furthermore, the filter can be removed from the carrier for cleaning after brewing, effectively preventing incomplete cleaning that could leave coffee residue that clogs the coffee flow, affecting the flavor of the brewed coffee and impacting the user experience. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the assembly structure of an automatic coffee brewing machine according to an embodiment of the present utility model;

[0028] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of an automatic coffee brewing machine;

[0029] Figure 3 yes Figure 1 A schematic diagram of the internal structure of an automatic coffee brewing machine;

[0030] Figure 4 This is a schematic diagram of the working structure of the powder pressing and brewing mechanism and the filter;

[0031] Figure 5 This is a schematic diagram of the frame structure of an automatic coffee brewing machine;

[0032] Figure 6 This is a schematic diagram of the assembly structure of an automatic coffee brewing machine according to another embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the assembly structure of the coffee weighing device and grinding mechanism according to an embodiment of the present utility model;

[0034] Figure 8 yes Figure 7 An exploded structural diagram of a coffee weighing device and grinding mechanism;

[0035] Figure 9 This is an exploded structural diagram of the coffee weighing device according to an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the structure of the coffee weighing device according to an embodiment of the present invention when the movable part is in the first position;

[0037] Figure 11 This is a schematic diagram of the structure of the coffee weighing device in the second position according to an embodiment of the present invention;

[0038] Figure 12 This is a partial disassembly schematic diagram of the coffee weighing device according to an embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of the fixing plate according to an embodiment of the present utility model;

[0040] Figure 14 This is a schematic diagram of the structure of the support ring body according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Automatic coffee brewing machine;

[0043] 1. Frame; 11. Guide component; 12. First limit switch; 13. Second limit switch; 14. Base plate; 15. Top plate; 16. Support plate; 17. Vertical plate; 18. Baffle plate; 2. Grinding mechanism; 3. Pressing and brewing mechanism; 31. Brewing body; 32. Piston; 321. Water outlet; 322. Water inlet channel; 33. Piston drive mechanism; 34. First positioning component; 4. Bearing component; 41. Locking hole; 42. Opening; 43. First connecting plate; 44. Second connecting plate; 45. Third connecting plate; 46. Sliding component; 5. Filter; 51. Filter cylinder; 52. Locking body; 53. Handle; 54. Second positioning component; 6. Drive mechanism; 61. Transmission device; 62. Gear; 63. Rack; 64. Rotary drive device;

[0044] 7. Coffee weighing device; 71. Moving part; 711. Receiving ring groove; 712. Guide groove; 713. First limiting groove; 715. Placement position; 716. Fixing plate; 717. Placement rack; 72. Weighing bracket; 721. Guide part; 722. First inclined surface; 723. Weighing body; 7231. Support suspension; 7232. Weighing sensor; 724. Support ring; 725. Elastic limiting part; 7251. Connecting column; 7252. Limiting block. Detailed Implementation

[0045] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0046] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0047] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0048] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0049] This utility model embodiment provides an automatic coffee brewing machine 100, such as Figures 1 to 5 As shown, the automatic coffee brewing machine 100 includes a frame 1 and a grinding mechanism 2, a tamping and brewing mechanism 3, a carrier 4, a filter 5, and a drive mechanism 6 disposed on the frame 1.

[0050] The grinding mechanism 2 and the tamping and brewing mechanism 3 are arranged sequentially. The support member 4 is movably mounted on the frame 1, and the filter 5 is detachably mounted on the support member 4. When the filter 5 is mounted on the support member 4, it is stably mounted and can be moved to the position of the grinding mechanism 2 or the tamping and brewing mechanism 3 for grinding or brewing operations. When the filter 5 needs to be removed for cleaning, external force is applied to the filter 5 to remove it from the support member 4, thus removing the filter 5 from the automatic coffee brewing machine 100 for cleaning. The operation is simple and convenient.

[0051] The output end of the drive mechanism 6 is connected to the carrier 4. When the filter 5 is placed on the carrier 4, the drive mechanism 6 can move the filter 5 on the carrier 4 to the grinding mechanism 2 or the tamping and brewing mechanism 3. Specifically, when the drive mechanism 6 moves the filter 5 to the grinding mechanism 2, it moves the filter 5 to the outlet of the grinding mechanism 2. At this time, the grinding mechanism 2 is started to grind coffee powder. The grinding mechanism 2 is a conventional structure that can automatically grind coffee beans into coffee powder and automatically dispense the powder, which will not be described in detail here. After the filter 5 is filled with a certain amount of coffee powder, the drive mechanism 6 moves the filter 5 to the tamping and brewing mechanism 3. At this time, the tamping and brewing mechanism 3 fixes the filter 5 and performs tamping and brewing processes.

[0052] The automatic coffee brewing method based on the aforementioned automatic coffee brewing machine 100 includes the following steps:

[0053] The filter 5 is assembled onto the carrier 4;

[0054] The control drive mechanism 6 drives the filter 5 on the carrier 4 to move to the grinding mechanism 2. At this time, the grinding mechanism 2 performs grinding operation and pours the ground coffee powder into the filter 5.

[0055] The control drive mechanism 6 drives the filter 5 on the carrier 4 to move to the powder pressing and brewing mechanism 3. At this time, the powder pressing and brewing mechanism 3 fixes the filter 5 and performs powder pressing and brewing processing.

[0056] After brewing is completed, the control drive mechanism 6 drives the filter 5 on the carrier 4 to move to the feeding position, and removes the filter 5 from the carrier 4 for cleaning.

[0057] In summary, the automatic coffee brewing machine 100 allows for quick assembly, disassembly, and cleaning of the filter 5 by detachably connecting it to the carrier 4. When the filter 5 needs to be assembled on the carrier 4, the drive mechanism 6 can move the filter 5 sequentially to the positions of the grinding mechanism 2 and the tamping and brewing mechanism 3 via the carrier 4, so as to perform grinding and brewing operations in sequence. That is, the user only needs to load the filter 5 onto the carrier 4 to realize the automatic grinding and brewing process of coffee. It has the characteristics of simple structure and convenient operation. Moreover, after the coffee brewing process is completed, the filter 5 can be removed from the carrier 4 for cleaning, which can effectively avoid the problem of coffee residue remaining on the filter 5 due to incomplete cleaning, which would block the flow of coffee liquid and affect the flavor of the brewed coffee, thus affecting the user experience.

[0058] In some embodiments, the carrier 4 is provided with a locking hole 41, which is a hole structure with an opening 42 on one side formed by an inward recess along one side edge of the carrier 4. The filter 5 is detachably housed in the locking hole 41, and the filter 5 can be moved out of the locking hole 41 through the opening 42. When it is necessary to assemble the filter 5 onto the carrier 4, the filter 5 is inserted into the locking hole 41 through the opening 42 and fixed. For example, the filter 5 can be secured in the locking hole 41 by a locking device, or it can be elastically held in the locking hole 41. Any structure that can fix the filter 5 in its natural state within the locking hole 41 and can be detached from the locking hole 41 under external force is applicable, and no particular limitation is made here. At this time, the filter 5 can be stably loaded on the carrier 4, and the filter 5 can be moved to the position of the grinding mechanism 2 or the pressing and brewing mechanism 3 for grinding or brewing operations. When the filter 5 needs to be removed for cleaning, external force is applied to the filter 5, and the filter 5 is moved out of the card hole 41 through the opening 42. The filter 5 can then be removed from the automatic coffee brewing machine 100 for cleaning. The operation is simple and convenient.

[0059] In some embodiments, as Figure 1 and Figure 3 As shown, the orientation of the opening 42 intersects the direction of movement of the support member 4. Preferably, the orientation of the opening 42 of the locking hole 41 is perpendicular to the direction of movement of the support member 4. Understandably, by setting the orientation of the opening 42 of the locking hole 41 to intersect the direction of movement of the support member 4, the filter 5 can only disengage from the opening 42 under the action of an external force in a specific direction. This effectively avoids the problem of the filter 5 disengaging from the opening 42 due to inertia during the reciprocating movement of the support member 4 driven by the drive mechanism 6 in the grinding mechanism 2 and the pressing and brewing mechanism 3.

[0060] In some embodiments, as Figure 3As shown, the carrier 4 includes a first connecting plate 43, a second connecting plate 44, and a third connecting plate 45. The second connecting plate 44 and the third connecting plate 45 are both perpendicularly connected to the first connecting plate 43, and the first connecting plate 43, the second connecting plate 44, and the third connecting plate 45 cooperate to form a U-shaped locking hole 41 with the opening 42. The opening of the U-shaped locking hole 41 faces the outside of the frame 1, corresponding to the user's operating side. The shape of the U-shaped locking hole 41 facilitates the installation or removal of the filter 5 from the carrier 4, and the filter 5 can be stably mounted on the carrier 4.

[0061] In some embodiments, as Figure 2 and Figure 3 As shown, the filter 5 includes a filter cylinder 51 and a handle 53. The handle 53 is disposed on the body of the filter cylinder 51. A retaining body 52 is disposed at the top of the filter cylinder 51. The retaining body 52 is detachably attached to the edge of the retaining hole 41. By rotating and moving the handle 53, the filter cylinder 51 can be moved out through the opening 42. The structure of the filter 5 is adapted to the structure of the U-shaped retaining hole 41. Specifically, in the filter 5, the filter cylinder 51 has a cylindrical structure, and the radial length of the filter cylinder 51 is less than the width of the retaining hole 41, so that the body of the filter cylinder 51 can be accommodated in the retaining hole 41. The retaining body 52 is an annular body with a square outer edge and a round inner edge, and the radial length of the outer edge of the retaining body 52 is greater than the width of the retaining hole 41, so that the retaining body 52 can be engaged with the edge of the retaining hole 41. Thus, the filter 5 is suspended on the support member 4, which can stably load the filter 5 on the support member 4 and facilitate its removal from the support member 4. By providing the handle 53, external force can be easily applied to the handle 53 to install or remove the filter 5 from the locking hole 41 of the carrier 4 through rotation and / or movement, making operation simple and convenient. In addition, the bottom of the filter cartridge 51 may also be equipped with conventional components for controlling the liquid output, such as a water outlet valve and filter elements, so that the coffee liquid can be automatically poured into the cup after brewing, while the residue remains in the filter cartridge 51. This will not be described in detail here.

[0062] In some embodiments, as Figure 2 and Figure 3As shown, the driving mechanism 6 includes a rotary driving device 64 and a transmission device 61. The output end of the rotary driving device 64 is connected to the carrier 4 through the transmission device 61, so as to drive the carrier 4 to reciprocate along the extension direction of the grinding mechanism 2 to the pressing and brewing mechanism 3. By setting the cooperative structure of the rotary driving device 64 and the transmission device 61, the rotary driving force of the rotary driving device 64 is converted into a linear driving force through the transmission action of the transmission device 61, so as to drive the carrier 4 to reciprocate linearly along the extension direction of the grinding mechanism 2 to the pressing and brewing mechanism 3. Compared with the driving method of a linear motor, the driving source and the carrier 4 can be set non-coaxially, thereby making full use of the internal space of the automatic coffee brewing machine 100 and improving the structural compactness. Of course, in other embodiments, the driving mechanism 6 can also be a device such as a linear motor that can directly drive the carrier 4 to reciprocate linearly; no particular limitation is made here.

[0063] In some embodiments, as Figure 3 As shown, the transmission device 61 includes a gear 62 and a rack 63. The output end of the rotary drive device 64 is connected to the gear 62 and drives the gear 62 to rotate. The rack 63 is disposed on the support member 4, and the gear 62 and rack 63 are meshed. Through the meshing transmission of the gear 62 and rack 63, the rotational driving force of the rotary drive device 64 can be effectively converted into the linear motion of the support member 4, improving the stability of the motion. Of course, in other embodiments, the transmission device 61 can also be other devices that can convert rotational driving force into linear driving force, such as screw drive, worm gear drive, etc., and no particular limitation is made here.

[0064] In some embodiments, as Figure 3 As shown, the frame 1 is provided with a guide member 11 extending along the grinding mechanism 2 to the pressing and brewing mechanism 3. The support member 4 is provided with a sliding member 46 adapted to the guide member 11. The support member 4 slides on the guide member 11 via the sliding member 46. The guide member 11 can be a guide groove on the frame 1, and the sliding member 46 can be a sliding block on the support member 4 adapted to the guide groove. The support member 4 slides on the guide groove via the sliding block to form a linear motion. Alternatively, the guide member 11 can be a guide protrusion on the frame 1, and the sliding member 46 can be a groove on the support member 4. The support member 4 slides on the guide protrusion via the groove to form a linear motion. No particular limitation is made here. Through the cooperative structure of the guide member 11 and the sliding member 46, the support member 4 can reciprocate along a specific trajectory, thereby accurately moving to the grinding mechanism 2 or the pressing and brewing mechanism 3.

[0065] In some embodiments, as Figure 4As shown, the tamping and brewing mechanism 3 includes a brewing body 31, a piston 32, and a piston drive mechanism 33. The piston drive mechanism 33 is mounted on the brewing body 31, and its output end is connected to the piston 32. When the filter 5 reaches the position of the tamping and brewing mechanism 3, the piston drive mechanism 33 drives the piston 32 to extend into or out of the filter 5. Specifically, when the drive mechanism 6 moves the filter 5 to the tamping and brewing mechanism 3, the piston drive mechanism 33 drives the piston 32 to move along the axis of the filter 5 to the inside of the filter 5 to compact the coffee powder and brew coffee. After brewing, the piston drive mechanism 33 drives the piston 32 to move in the opposite direction to leave the filter 5 and release the compaction. At this time, the filter 5 can move to a feeding position, such as the grinding mechanism 2, for cleaning to complete the work cycle. Furthermore, it should be noted that the other unmentioned structures of the tamping and brewing mechanism 3 are conventional structures capable of automatically cooperating to brew coffee from coffee powder, and will not be described in detail here.

[0066] In some embodiments, as Figure 4 As shown, the piston 32 has a hollow water inlet channel 322 along its central axis, and the end of the piston 32 near the filter 5 has multiple water outlet holes 321 connecting the water inlet channel 322 and the filter 5. The top of the piston 32 can be connected to the water inlet channel 322 via a water inlet hose, thus accommodating the up-and-down movement of the piston 32. When the piston 32 presses down on the coffee powder inside the filter 5, hot water flows into the filter 5 from the water inlet channel 322 through the water outlet holes 321, automatically brewing the coffee powder. This design is simple and requires no manual operation.

[0067] In some embodiments, as Figure 4As shown, the pressing and brewing mechanism 3 is equipped with a first positioning device that cooperates with the filter 5. When the filter 5 reaches the position of the pressing and brewing mechanism 3, it is connected to the pressing and brewing mechanism 3 through the first positioning device. Specifically, the first positioning device includes a first positioning element 34 and a second positioning element 54. The pressing and brewing mechanism 3 is provided with the first positioning element 34, and the filter 5 is provided with the second positioning element 54, which is magnetically attracted to the first positioning element 34. When the filter 5 reaches the position of the pressing and brewing mechanism 3, it is connected to the pressing and brewing mechanism 3 through the magnetic attraction between the second positioning element 54 and the first positioning element 34. Both the first positioning element 34 and the second positioning element 54 can be magnets. Through the magnetic attraction between them, the filter 5 can be accurately positioned and fixed below the pressing and brewing mechanism 3 when it reaches the predetermined position, thereby allowing the piston 32 to be accurately pressed into the filter 5. Of course, in other embodiments, the first positioning member 34 and the second positioning member 54 are not limited to the magnetically attracted components. They can also be connected in a plug-in state with matching holes and posts to accurately limit and fix the filter 5 below the powder brewing mechanism 3. No special limitation is made here.

[0068] In some embodiments, the grinding mechanism 2 is provided with a second positioning device that cooperates with the filter 5. When the filter 5 reaches the position of the grinding mechanism 2, the filter 5 is connected to the grinding mechanism 2 through the second positioning device. Specifically, the second positioning device includes a third positioning member and a fourth positioning member. The grinding mechanism 2 is provided with a third positioning member, and the filter 5 is provided with a fourth positioning member that is magnetically attracted to the third positioning member. When the filter 5 reaches the position of the grinding mechanism 2, the filter 5 is connected to the grinding mechanism 2 through the magnetic attraction between the fourth positioning member and the third positioning member. The magnetic attraction between the third and fourth positioning members ensures that when the filter reaches the predetermined position of the grinding mechanism 2, it is accurately positioned and fixed below the grinding mechanism 2, so that the filter 5 can accurately catch the ground coffee powder. It should be noted that the third positioning member and the first positioning member 34 on the filter 5 can be the same or two different positioning members; no particular limitation is made here. Specifically, in this embodiment, the third positioning member 34 on the filter 5 is the same as the first positioning member, so that the filter 5 can be accurately positioned when it moves to the grinding mechanism 2 or the pressing and brewing mechanism 3.

[0069] In some embodiments, as Figure 3As shown, a first limit switch 12 is provided on the frame 1 near the grinding mechanism 2, allowing the filter 5 to contact the first limit switch 12 when it moves to the grinding mechanism 2. A second limit switch 13 is provided on the frame 1 near the pressing and brewing mechanism 3, allowing the filter 5 to contact the second limit switch 13 when it moves to the pressing and brewing mechanism 3. By using the first limit switch 12 and the second limit switch 13, the movement of the filter 5 on the carrier 4 can be precisely controlled to stop at a preset position on the grinding mechanism 2 or the pressing and brewing mechanism 3, allowing for the next grinding or pressing and brewing operation.

[0070] The automatic coffee brewing machine 100 also includes a control circuit (not shown) for controlling the grinding and brewing of coffee beans, as well as the movement of the filter 5 and the carrier 4. Since these are conventional components and the control method is also conventional, they are not the focus of this invention and will not be described in detail here. Furthermore, the automatic coffee brewing machine 100 may also include conventional components such as a power supply and a display screen; no special limitations are imposed here.

[0071] In some embodiments, as Figure 1 and Figure 5 As shown, the frame 1 includes a base plate 14, a top plate 15, a support plate 16, and two vertical plates 17. The top plate 15 is mounted on the base plate 14 via the two vertical plates 17. The support plate 16 is positioned between the base plate 14 and the top plate 15. The grinding mechanism 2 and the pressing and brewing mechanism 3 are distributed on the top plate 15 in a left-right direction. The top plate 15 has a first through hole communicating with the powder outlet of the grinding mechanism 2, and a second through hole for the piston 32 of the pressing and brewing mechanism 3 to move up and down. The carrier 4 is movably mounted on the support plate 16, with its opening 42 facing the user. A baffle plate 18 is positioned at the front between the top plate 15 and the support plate 16, and the height of the baffle plate 18 is lower than the height between the top plate 15 and the support plate 16. This baffle plate serves to protect the structure of the carrier 4 and the drive mechanism 6, and also prevents interference with the removal or assembly of the filter 5.

[0072] In some embodiments, as Figures 6 to 14 As shown, the automatic coffee brewing machine 100 also includes a coffee weighing device 7, which includes a movable part 71 and a weighing support 72.

[0073] The movable component 71 has a placement position 715, in which the filter 5 is detachably placed. The movable component 71 is movably disposed between the support member 4 and the weighing bracket 72, and the movable component 71 can move to a first position or a second position. When the movable component 71 is in the first position, the movable component 71 is detached from the weighing bracket 72, and the movable component 71 is supported by the support member 4. When the movable component 71 is in the second position, the movable component 71 is detached from the support member 4, and the movable component 71 is supported by the weighing bracket 72 for weighing operation.

[0074] The weighing bracket 72 is fixed to the grinding mechanism 2, and the placement position 715 of the movable part 71 is correspondingly set at the powder outlet of the grinding mechanism 2. When no weighing is being performed, the movable part 71 is in the first position, detached from the weighing bracket 72, and supported on the carrier 4. At this time, the filter 5 can be loaded into the placement position 715 of the movable part 71. After the filter 5 is loaded, an external force is applied to control the movable part 71 to move to the second position. At this time, the movable part 71 detaches from the carrier 4 and is supported on the weighing bracket 72. At this time, the coffee powder ground by the grinding mechanism 2 enters the filter 5. The weighing bracket 72 can weigh the filter 5 placed in the placement position 715. After weighing to the preset weight, the grinding mechanism 2 closes the powder outlet state. Then, the filter 5 can drive the carrier 4 to move through the drive mechanism 6, thereby moving the filter 5 from the placement position 715 of the movable part 71 so that the filter 5 is separated from the weighing bracket 72. At this time, the filter 5 can move to the position of the powder pressing and brewing mechanism 3 under the drive of the drive mechanism 6 to carry out the brewing operation.

[0075] Based on the coffee weighing device 7 described above, a coffee weighing method is provided, characterized in that the coffee weighing method includes the following steps:

[0076] When the movable part 71 is switched to the first position, the movable part 71 is disengaged from the weighing bracket 72 and is supported on the bearing member 4. The weighing bracket 72 is in a non-weighing state relative to the movable part 71.

[0077] When the movable part 71 is moved to the second position, the movable part 71 is detached from the support member 4 and is supported by the weighing bracket 72. At this time, the weighing bracket 72 can weigh the filter 5 placed on the movable part 71.

[0078] In summary, this coffee weighing device 7 movably positions a movable component 71 between the support member 4 and the weighing bracket 72. By switching the movable component 71 between a first position and a second position, when the movable component 71 is in the first position, it is detached from the weighing bracket 72 and supported on the support member 4. In this position, the weighing bracket 72 does not weigh the filter 5 on the movable component 71. When the movable component 71 is switched to the second position, it is detached from the support member 4 and supported on the weighing bracket 72, allowing the weighing bracket 72 to weigh the filter 5 placed on the movable component 71. Therefore, the position of the movable component 71 can be quickly switched to support the weighing bracket 72 to accurately weigh the coffee powder. Furthermore, when weighing is not required, the position of the movable component 71 can be switched to separate from the weighing bracket 72, ensuring that the movement of the filter 5 does not affect the state of the weighing bracket 72, thus preventing any impact on the weighing accuracy of the weighing bracket 72 when the filter 5 moves.

[0079] In some embodiments, as Figure 10 , Figure 11 and Figure 14 As shown, the weighing bracket 72 is located above the support member 4. The movable member 71 is rotatably mounted on the support member 4 and can rotate relative to the support member 4 to a first position or a second position. The weighing bracket 72 is provided with a guide portion 721, which has a first inclined surface 722. During the process of rotating relative to the support member 4 from the first position to the second position, the movable member 71 can contact the guide portion 721 and move upward along the first inclined surface 722 of the guide portion 721 until it disengages from the support member 4. The first inclined surface 722 of the guide portion 721 extends obliquely upward along the direction in which the movable member 4 moves from the first position to the second position, allowing the movable member 71 to move up and down in the axial direction between the weighing bracket 72 and the support member 4 when moving along the guide portion 721. This allows the movable member 71 to switch between being supported on the support member 4 or the weighing bracket 72.

[0080] In some embodiments, as Figure 9 , Figure 13 and Figure 14As shown, the weighing support 72 includes a weighing body 723 and a support ring 724 connected to the weighing body 723; the support ring 724 is provided with the guide portion 721; the movable member 71 is provided with a receiving ring groove 711, and the top wall of the receiving ring groove 711 forms a guide groove 712 that slides with the guide portion 721. The guide groove 712 has a second inclined surface. The support ring 724 is accommodated in the receiving ring groove 711, wherein the second inclined surface of the guide groove 712 extends obliquely upward along the direction in which the movable member 4 moves from the first position to the second position. By rotating the movable member 71, the guide groove 712 is driven to slide relative to the guide portion 721, so as to realize the reciprocating movement of the movable member 71 between the bearing member 4 and the support ring 724. In this design, the receiving groove 711 of the movable component 71 has a gap between it and the supporting ring 724 in the axial direction. When the movable component 71 is in the first position, there is no contact between the guide portion 721 of the supporting ring 724 and the guide groove 712 of the movable component 71, and the weighing bracket 72 is not under stress. The movable component 71 is supported by the bearing component 4 located below. As the movable component 71 rotates to the second position, the second inclined surface of the guide groove 712 gradually contacts the first inclined surface 722 of the guide portion 721. At this time, the continued rotation of the movable component 71 will cause it to move upward in the axial direction between the bearing component 4 and the weighing bracket 72 to disengage from the bearing component 4 and switch to the support ring 724 to support the movable component 71, so as to accurately weigh the coffee powder in the filter 5.

[0081] In some embodiments, as Figure 13 and Figure 14 As shown, three guide portions 721 are provided, evenly arranged on the weighing bracket 72, and each guide portion 721 has an arc-shaped structure. Correspondingly, three guide grooves 712 are also provided, with each of the three guide portions 721 corresponding to one of the three guide grooves 712. It can be understood that by providing these three guide portions 721, after the movable member 71 rotates relative to the support member 4 to the second position, the movable member 71 can be evenly supported by these three guide portions 721, thereby stably supporting itself on the weighing bracket 72 and improving weighing accuracy.

[0082] In some embodiments, as Figure 9 , Figure 13 and Figure 14As shown, the sidewall of the receiving ring groove 711 is provided with a first limiting groove 713 and a second limiting groove. The edge of the supporting ring 724 is provided with an elastic limiting member 725. When the movable member 71 rotates relative to the supporting ring 724 to the first position, the elastic limiting member 725 is elastically engaged in the first limiting groove 713. When the movable member 71 rotates relative to the supporting ring 724 to the second position, the elastic limiting member 725 is elastically engaged in the second limiting groove. By providing the elastic limiting member 725, the movable member 71 can be limited to the first limiting groove 713 or the second limiting groove when it rotates to the first or second position, thus forming an indication that the rotation is in place and restricting further rotation of the movable member 71, effectively preventing excessive rotation from affecting the weighing effect.

[0083] Specifically, in this embodiment, the elastic limiting member 725 includes a connecting post 7251 and a limiting block 7252. The connecting post 7251 is disposed on the outer ring edge of the supporting ring 724 and extends along the circumferential direction of the supporting ring 724. A gap is formed between the post body of the connecting post 7251 and the outer ring edge of the supporting ring 724. The connecting post 7251 has elastic properties, and the limiting block 7252 is connected to the end of the connecting post 7251. The gap between the connecting post 7251 and the supporting ring 724 allows the connecting post 7251 to have elastic movement space, enabling it to adapt to deformation according to the groove width of the receiving ring groove 711, thus allowing it to smoothly enter or disengage from the limiting groove.

[0084] In some embodiments, as Figure 9 As shown, two first limiting grooves 713 are provided, and the two first limiting grooves 713 are symmetrically arranged on the side wall of the receiving annular groove 711. Two second limiting grooves are also provided, and the two second limiting grooves are symmetrically arranged on the side wall of the receiving annular groove 711. Correspondingly, two elastic limiting members 725 are adapted to be provided, and the two elastic limiting members 725 are symmetrically arranged relative to the supporting ring 724.

[0085] In some embodiments, as Figure 9 As shown, the weighing body 723 includes a support suspension 7231 and a weighing sensor 7232. The support suspension 7231 is connected to the support ring 724, and the weighing sensor 7232 is disposed on the support suspension 7231. The support suspension 7231 fixes the weighing sensor 7232 to an external mechanism, such as the frame 1 or the grinding mechanism 2 of the automatic coffee brewing machine 100, thereby suspending the weighing bracket 72 entirely above the support member 4 with a gap between them. This allows the movable member 71 to move axially relative to the weighing bracket 72, switching between being supported on the support member 4 or the weighing bracket 72.

[0086] In some embodiments, the support suspension 7231 includes a cross frame and two vertical frames. The cross frame is supported by the two vertical frames. A weighing sensor 7232 is disposed on the cross frame. The bottom ends of the two vertical frames are connected to the support ring 724. The cross frame can be fixedly connected to the grinding mechanism 2 or the frame 1.

[0087] In some embodiments, as Figure 3 , Figure 10 and Figure 11 As shown, the placement position 715 is a snap-fit ​​groove extending through the movable member 71 in a first direction. The filter 5 can be fixed by entering the snap-fit ​​groove at one end along the first direction, or it can be moved out through the same end to detach from the snap-fit ​​groove. The driving mechanism 6 drives the carrier member 4 to move in a second direction. When the movable member 71 is in the second position, the first direction and the second direction extend in the same direction. The driving mechanism 6 can drive the carrier member 4 to move the filter 5 away from the placement position 715 and to the powder pressing and brewing mechanism 3. Thus, the entire process of grinding, weighing, and brewing can be automatically completed by loading the filter 5 into the snap-fit ​​groove of the movable member 71 and moving it to the second position. This method is characterized by its simple structure and convenient operation.

[0088] In some embodiments, as Figure 9 As shown, the movable component 71 includes a fixed plate 716 and a placement frame 717. Both the fixed plate 716 and the placement frame 717 are axially hollow, and a stepped groove is formed on the placement frame 717. The fixed plate 716 is disposed on the placement frame 717 so that the two cooperate to form the receiving annular groove 711. A guide groove 712 is formed on the side of the fixed plate 716 near the placement frame 717. The peripheral wall of the stepped groove of the placement frame 717 is provided with a first limiting groove 713 and a second limiting groove. The placement frame 717 is provided with the placement position 715. The placement frame 717 can be placed on the support member 4 and can rotate relative to the support member 4 to a first position or a second position.

[0089] For ease of understanding, such as Figures 1 to 14 As shown, this embodiment provides an overall workflow for an automatic coffee brewing machine 100:

[0090] In the initial state, the movable part 71 is in the first position. At this time, there is no contact between the guide part 721 of the support ring 724 and the guide groove 712 of the movable part 71, and the weighing bracket 72 is not under force. At this time, the through direction of the snap-fit ​​groove of the movable part 71 is the front-to-back direction. The filter 5 can be inserted into the movable part 71 through the opening of the snap-fit ​​groove. After the filter 5 is placed, the movable part 71 is rotated. During the process of the movable part 71 rotating to the second position, the second inclined surface of the guide groove 712 gradually contacts the first inclined surface 722 of the guide part 721. At this time, the continued rotation of the movable part 71 will drive the movable part 71 moves upward in the axial direction between the carrier 4 and the weighing bracket 72 to disengage from the carrier 4, and switches to the support ring 724 to support the movable part 71. At this time, the coffee powder ground by the grinding mechanism 2 enters the filter 5. The weighing bracket 72 can weigh the coffee powder in the filter 5. After weighing to the preset weight, the grinding mechanism 2 closes the powder discharging state. At this time, the through direction of the snap-fit ​​groove of the movable part 71 is left and right, which is consistent with the direction of the drive mechanism 6 driving the carrier 4 to move. The drive mechanism 6 drives the carrier 4 to drive the filter 5 to disengage from the snap-fit ​​groove and move it to the tamping and brewing mechanism 3. Thus, the entire process of grinding, weighing and brewing can be automatically completed by loading the filter 5 into the snap-fit ​​groove of the movable part 71 and moving it to the second position. It has the characteristics of simple structure and convenient operation.

[0091] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. An automatic coffee brewing machine, characterized in that, The automatic coffee brewing machine includes a frame and a grinding mechanism, a tamping and brewing mechanism, a carrier, a filter, and a drive mechanism mounted on the frame; The grinding mechanism and the pressing and brewing mechanism are arranged in sequence. The carrier is movably mounted on the frame, and the filter is detachably mounted on the carrier; The output end of the drive mechanism is connected to the carrier. When the filter is placed on the carrier, the drive mechanism can drive the filter on the carrier to move to the grinding mechanism or the pressing and brewing mechanism.

2. The automatic coffee brewing machine as described in claim 1, characterized in that, The pressing and brewing mechanism is equipped with a first positioning device that cooperates with the filter. When the filter reaches the position of the pressing and brewing mechanism, the filter is connected to the pressing and brewing mechanism through the first positioning device; and / or, The grinding mechanism is provided with a second positioning device that cooperates with the filter. When the filter reaches the position of the grinding mechanism, the filter is connected to the grinding mechanism through the second positioning device.

3. The automatic coffee brewing machine as described in claim 1, characterized in that, The carrier is provided with a locking hole, which is a hole structure that is recessed inward along one side edge of the carrier to form an opening on one side; the filter is detachably accommodated in the locking hole, and the filter can be moved out of the locking hole through the opening.

4. The automatic coffee brewing machine as described in claim 3, characterized in that, The orientation of the opening intersects with the direction of movement of the support member; and / or, the support member includes a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate and the third connecting plate being perpendicularly connected to the first connecting plate, and the first connecting plate, the second connecting plate and the third connecting plate cooperating to form a U-shaped card hole with the opening.

5. The automatic coffee brewing machine as described in claim 3, characterized in that, The filter includes a filter cylinder and a handle. The handle is disposed on the body of the filter cylinder. A retaining body is disposed at the top of the filter cylinder. The retaining body is detachably attached to the edge of the retaining hole. By rotating and moving the handle, the filter cylinder can be moved out through the opening.

6. The automatic coffee brewing machine according to any one of claims 1-5, characterized in that, The driving mechanism includes a rotary driving device and a transmission device; the output end of the rotary driving device is connected to the carrier through the transmission device to drive the carrier to reciprocate along the extension direction from the grinding mechanism to the pressing and brewing mechanism.

7. The automatic coffee brewing machine as described in claim 6, characterized in that, The transmission device includes a gear and a rack. The output end of the rotary drive device is connected to the gear and drives the gear to rotate. The rack is mounted on the support member, and the gear and rack are meshed together.

8. The automatic coffee brewing machine according to any one of claims 1-5, characterized in that, The powder-pressing brewing mechanism includes a brewing body, a piston, and a piston drive mechanism; The piston drive mechanism is disposed on the brewing body, and the output end of the piston drive mechanism is connected to the piston. When the filter reaches the position of the pressing brewing mechanism, the piston drive mechanism drives the piston to extend into or out of the filter.

9. The automatic coffee brewing machine according to any one of claims 1-5, characterized in that, The automatic coffee brewing machine also includes a coffee weighing device; the coffee weighing device includes a moving part and a weighing support. The movable component has a placement position; the filter is detachably placed in the placement position; The movable component is movably disposed between the carrier and the weighing bracket, and the movable component can move to a first position or a second position; when the movable component is in the first position, the movable component is detached from the weighing bracket and supported by the carrier; when the movable component is in the second position, the movable component is detached from the carrier and supported by the weighing bracket for weighing operation.

10. The automatic coffee brewing machine according to any one of claims 1-5, characterized in that, A first limit switch is provided on the frame near the grinding mechanism, so that the filter can contact the first limit switch when it moves to the grinding mechanism; a second limit switch is provided on the frame near the pressing and brewing mechanism, so that the filter can contact the second limit switch when it moves to the pressing and brewing mechanism.

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