Automatic coffee brewing machine and automatic coffee brewing method

Abstract

The invention belongs to the technical field of coffee machines, and discloses an automatic coffee brewing machine and an automatic coffee brewing method.The automatic coffee brewing machine comprises a rack, a powder grinding mechanism, a powder pressing and brewing mechanism, a bearing part, a filter and a driving mechanism, and the powder grinding mechanism, the powder pressing and brewing mechanism, the bearing part, the filter and the driving mechanism are arranged on the rack; 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] The invention belongs to the technical field of coffee machines, and in particular relates to an automatic coffee brewing machine and an automatic coffee brewing method. Background Art

[0002] With the improvement of living standards, more and more people are pursuing high-quality freshly ground coffee. In the production process of freshly ground coffee, coffee beans need to be ground and brewed. In order to meet people's needs, coffee machines with bean grinding functions are now available on the market. However, due to the complexity of the internal structure of the coffee machine and the space limitation, the brewing and grinding operations are usually performed separately, and the user needs to manually pour the ground coffee powder into the brewing chamber for brewing, which is cumbersome and time-consuming. In order to free the hands of the user, there is also a fully automatic coffee machine with a bean grinding function on the market. The fully automatic coffee machine can automatically control the grinding mechanism to grind the coffee powder, and automatically pass the ground coffee powder into the brewing device for brewing. After brewing, the brewing device is automatically cleaned by the internal cleaning mechanism, that is, the user only needs to pour in the coffee beans, and a cup of coffee can be obtained through the automatic production of the fully automatic coffee machine. The user does not need to perform other operations, the operation is simple, and the production efficiency is high. However, since the various components of the brewing device are fixed inside the coffee machine and are automatically cleaned by a cleaning mechanism, the brewing chamber may not be cleaned properly after long-term use, and it is difficult to detect that coffee residues left in the brewing chamber may block the outflow of coffee liquid on the one hand, and affect the flavor of the coffee brewed later and affect the user experience on the other hand. Summary of the invention

[0003] The object of the present invention is to provide an automatic coffee brewing machine which can automatically complete the grinding and brewing processes and is convenient for cleaning coffee residues.

[0004] The above-mentioned purpose is achieved by the following technical solutions.

[0005] A first aspect of the present invention provides an automatic coffee brewing machine, comprising a frame, and a grinding mechanism, a powder pressing and brewing mechanism, a bearing, a filter and a driving mechanism arranged on the frame;

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

[0007] The bearing member is movably arranged on the frame, and the filter is detachably arranged on the bearing member;

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

[0009] In some embodiments, a card hole is provided on the carrier, and the card hole 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 card hole, and the filter can be moved out of the card hole through the opening.

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

[0011] In some embodiments, the carrier includes a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate and the third connecting plate are vertically 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, wherein the handle is disposed on the body of the filter cartridge; a card body is disposed at the top of the filter cartridge, wherein the card body is detachably mounted on the edge of the card hole, and the filter cartridge can be removed through the opening by rotating and moving the handle.

[0013] In some embodiments, the driving mechanism includes a rotary driving device and a transmission device; the output end of the rotary driving device is connected to the supporting member through the transmission device to drive the supporting member to reciprocate along the extension direction from the grinding mechanism to the powder 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 arranged on the carrier, and the gear and the rack are meshed.

[0015] In some embodiments, the frame is provided with a guide member extending from the grinding mechanism to the powder pressing and brewing mechanism, the supporting member is provided with a sliding member adapted to the guide member, and the supporting member is slidably arranged on the guide member through the sliding member.

[0016] In some embodiments, the compressed powder brewing mechanism includes a brewing body, a piston, and a piston driving mechanism;

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

[0018] In some embodiments, the piston is provided with a hollow water inlet channel along its central axis, and a plurality of water outlet holes connecting the water inlet channel and the filter are formed at one end of the piston close to the filter.

[0019] In some embodiments, the compressed powder brewing mechanism is provided with a first positioning device cooperating with the filter, and when the filter reaches the position of the compressed powder brewing mechanism, the filter is connected to the compressed powder brewing mechanism through the first positioning device; and / or,

[0020] The grinding mechanism is provided with a second positioning device matched 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 comprises a coffee weighing device; the coffee weighing device comprises a movable part and a weighing bracket;

[0022] The movable part has a placement position; the filter is detachably placed at the placement position;

[0023] The movable part is movably arranged between the bearing part and the weighing bracket, and the movable part can move to a first position or a second position; when the movable part is in the first position, the movable part is separated from the weighing bracket, and the movable part is supported on the bearing part; when the movable part is in the second position, the movable part is separated from the bearing part, and the movable part is supported on the weighing bracket to perform weighing operations.

[0024] In some embodiments, a first limit switch is provided at a position of the frame close to the grinding mechanism, and the filter can contact the first limit switch when it moves to the grinding mechanism; a second limit switch is provided at a position of the frame close to the compressed powder brewing mechanism, and the filter can contact the second limit switch when it moves to the compressed powder brewing mechanism.

[0025] A second aspect of the present invention provides an automatic coffee brewing method, the automatic coffee brewing method comprising the following steps:

[0026] Assembling the filter on the carrier;

[0027] The control driving mechanism drives the filter on the carrier to move to the grinding mechanism, and the grinding mechanism performs a grinding operation and pours the ground coffee powder into the filter;

[0028] The control driving mechanism drives the filter on the carrier to move to the powder pressing and brewing mechanism, at which time the powder pressing and brewing mechanism fixes the filter and performs powder pressing and brewing processes;

[0029] After brewing is completed, the driving mechanism is controlled to drive the filter on the carrier to move to the unloading position, and the filter is removed from the carrier for cleaning.

[0030] The technical solution provided by the present invention has the following advantages and effects:

[0031] The automatic coffee brewing machine detachably connects the filter to the carrier so that the filter can be quickly assembled and disassembled for cleaning. When the filter is assembled on the carrier, the driving mechanism can drive the filter to move to the positions of the grinding mechanism and the powder pressing and brewing mechanism in sequence through the carrier to perform grinding and brewing operations in sequence. That is, the user only needs to load the filter on the carrier to realize the automatic grinding and brewing process of coffee. The machine has the characteristics of simple structure and convenient operation. Moreover, the filter can be removed from the carrier for cleaning after the coffee brewing process is completed, which can effectively avoid the problem that coffee residues remain on the filter due to unclean cleaning, blocking the outflow of coffee liquid, affecting the flavor of the brewed coffee, and affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the assembly structure of the automatic coffee brewing machine according to an embodiment of the present invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of an automatic coffee brewing machine;

[0034] Figure 3 yes Figure 1 A schematic diagram of the internal partial structure of an automatic coffee brewing machine;

[0035] Figure 4 It is a schematic diagram of the matching structure of the pressed powder brewing mechanism and the filter;

[0036] Figure 5 It is a schematic diagram of the frame structure of an automatic coffee brewing machine;

[0037] Figure 6 is a schematic diagram of the assembly structure of an automatic coffee brewing machine according to another embodiment of the present invention;

[0038] Figure 7 is a schematic diagram of the assembly structure of a coffee weighing device and a grinding mechanism according to an embodiment of the present invention;

[0039] Figure 8 yes Figure 7 Schematic diagram of the exploded structure of the coffee weighing device and the grinding mechanism;

[0040] Fig. 9 is a schematic diagram of an exploded structure of a coffee weighing device according to an embodiment of the present invention;

[0041] Fig.10 is a schematic structural diagram of a coffee weighing device according to an embodiment of the present invention when a movable part is in a first position;

[0042] Fig.11 is a schematic structural diagram of a coffee weighing device according to an embodiment of the present invention when the movable part is in the second position;

[0043] Fig.12 is a schematic diagram of a partially disassembled structure of a coffee weighing device according to an embodiment of the present invention;

[0044] Fig.13 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention;

[0045] Fig.14 It is a schematic structural diagram of a support ring body according to an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 100. Automatic coffee brewing machine;

[0048] 1. Frame; 11. Guide; 12. First limit switch; 13. Second limit switch; 14. Bottom plate; 15. Top plate; 16. Support plate; 17. Vertical plate; 18. Shielding plate; 2. Grinding mechanism; 3. Pressed powder brewing mechanism; 31. Brewing body; 32. Piston; 321. Water outlet; 322. Water inlet channel; 33. Piston driving mechanism; 34. First positioning member; 4. Carrying member; 41. Clamping hole; 42. Opening; 43. First connecting plate; 44. Second connecting plate; 45. Third connecting plate; 46. Sliding member; 5. Filter; 51. Filter cartridge; 52. Clamp body; 53. Handle; 54. Second positioning member; 6. Driving mechanism; 61. Transmission device; 62. Gear; 63. Rack; 64. Rotary driving device;

[0049] 7. Coffee weighing device; 71. Movable part; 711. Accommodating ring groove; 712. Guide groove; 713. First limiting groove; 715. Placement position; 716. Fixed 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 body; 725. Elastic limiting member; 7251. Connecting column; 7252. Limit block. DETAILED DESCRIPTION

[0050] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0051] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0052] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0053] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0054] The embodiment of the present invention 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 powder pressing and brewing mechanism 3, a supporting member 4, a filter 5 and a driving mechanism 6 arranged on the frame 1.

[0055] The grinding mechanism 2 and the pressed powder brewing mechanism 3 are arranged in sequence. The carrier 4 is movably arranged on the frame 1, and the filter 5 is detachably arranged on the carrier 4; wherein, when the filter 5 is assembled on the carrier 4, 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 pressed powder brewing mechanism 3 for grinding or brewing operations. When the filter 5 needs to be removed for cleaning, an external force is applied to the filter 5 to remove the filter 5 from the carrier 4, and the filter 5 can be removed from the automatic coffee brewing machine 100 for cleaning, and the operation is simple and convenient.

[0056] The output end of the driving mechanism 6 is connected to the carrier 4. When the filter 5 is placed on the carrier 4, the driving mechanism 6 can drive the filter 5 on the carrier 4 to move to the grinding mechanism 2 or the powder pressing and brewing mechanism 3. When the driving mechanism 6 drives the filter 5 to move to the grinding mechanism 2, specifically, it drives the filter 5 to move to the powder outlet of the grinding mechanism 2. At this time, the grinding mechanism 2 is controlled to start grinding coffee powder. The grinding mechanism 2 is a conventional structure that can automatically grind coffee beans into coffee powder and automatically discharge powder, and no further description is given here. After the filter 5 receives a certain amount of coffee powder, the driving mechanism 6 drives the filter 5 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.

[0057] The automatic coffee brewing method based on the automatic coffee brewing machine 100 includes the following steps:

[0058] Assemble the filter 5 on the carrier 4;

[0059] The driving mechanism 6 is controlled to drive the filter 5 on the carrier 4 to move to the grinding mechanism 2. At this time, the grinding mechanism 2 performs a grinding operation and pours the ground coffee powder into the filter 5.

[0060] The control driving 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 processes;

[0061] After brewing is completed, the driving mechanism 6 is controlled to drive the filter 5 on the carrier 4 to move to the unloading position, and the filter 5 is removed from the carrier 4 for cleaning.

[0062] In summary, the automatic coffee brewing machine 100 detachably connects the filter 5 to the carrier 4 so that the filter 5 can be quickly assembled and disassembled for cleaning. When the filter 5 needs to be assembled on the carrier 4, the driving mechanism 6 can drive the filter 5 to move to the positions of the grinding mechanism 2 and the powder pressing and brewing mechanism 3 in sequence through the carrier 4 to perform grinding and brewing operations in sequence. That is, the user only needs to load the filter 5 on the carrier 4 to realize the automatic grinding and brewing process of coffee. It has the characteristics of simple structure and convenient operation, and the filter 5 can be removed from the carrier 4 for cleaning after the coffee brewing process is completed, which can effectively avoid the problem that unclean cleaning causes coffee residues to remain on the filter 5 to block the outflow of coffee liquid, and affects the flavor of the brewed coffee and the user experience.

[0063] In some embodiments, the carrier 4 is provided with a clamping hole 41, and the clamping hole 41 is a hole structure that is recessed inward along one side edge of the carrier 4 to form a side opening 42; the filter 5 is detachably accommodated in the clamping hole 41, and the filter 5 can be moved out of the clamping hole 41 through the opening 42. When the filter 5 needs to be assembled on the carrier 4, the filter 5 is sent into the clamping hole 41 through the opening 42 and fixed. For example, the filter 5 can be clamped at the clamping hole 41 by a clamp, or can be clamped in the clamping hole 41 by elastic action. Any structure that can fix the filter 5 in the clamping hole 41 in a natural state and can be separated from the clamping hole 41 under the action of external force is applicable, and no special restrictions are 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 pressed powder 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 move the filter 5 out of the clamping hole 41 through the opening 42. The filter 5 can then be removed from the automatic coffee brewing machine 100 for cleaning, which is simple and convenient to operate.

[0064] In some embodiments, Figure 1 and Figure 3As shown, the orientation direction of the opening 42 intersects with the moving direction of the carrier 4. Preferably, the orientation direction of the opening 42 of the clamping hole 41 is perpendicular to the moving direction of the carrier 4. It can be understood that by setting the orientation direction of the opening 42 of the clamping hole 41 to intersect with the moving direction of the carrier 4, the filter 5 can be separated from the opening 42 only under the action of an external force in a specific direction, which can effectively avoid the problem that the filter 5 is separated from the opening 42 under the action of inertia when the driving mechanism 6 drives the carrier 4 to reciprocate between the grinding mechanism 2 and the pressed powder brewing mechanism 3.

[0065] In some embodiments, Figure 3 As 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 vertically 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 clamping hole 41 having the opening 42. Among them, the opening 42 of the U-shaped clamping hole 41 faces the outside of the frame 1, that is, corresponds to the user's operation side, and the shape setting of the U-shaped clamping hole 41 can facilitate the installation or removal of the filter 5 on the carrier 4, and the filter 5 can be stably loaded on the carrier 4.

[0066] In some embodiments, Figure 2 and Figure 3 As shown, the filter 5 comprises a filter cartridge 51 and a handle 53, wherein the handle 53 is arranged on the body of the filter cartridge 51; a clamping body 52 is arranged on the top of the filter cartridge 51, wherein the clamping body 52 is detachably mounted on the edge of the clamping hole 41, and the filter cartridge 51 can be removed through the opening 42 by rotating and moving the handle 53. The structure of the filter 5 is adapted to the structure of the U-shaped clamping hole 41. Specifically, in the filter 5, the filter cartridge 51 is a cylindrical structure, wherein the radial length of the filter cartridge 51 is smaller than the width of the clamping hole 41, so that the body of the filter cartridge 51 can be accommodated in the clamping hole 41, and the clamping body 52 is an annular body with a square outside and a round inside, and the radial length of the outer edge of the clamping body 52 is larger than the width of the clamping hole 41, so that the clamping body 52 can be clamped on the edge of the clamping hole 41, so that the filter 5 is suspended on the carrier 4 as a whole, and the filter 5 can be stably loaded on the carrier 4, and it is convenient to remove it from the carrier 4. By providing the handle 53, it is convenient to apply external force to the handle 53 to install or remove the filter 5 from the clamping hole 41 of the carrier 4 by rotating and / or moving, and the operation is simple and convenient. In addition, the bottom of the filter cartridge 51 can also be provided with conventional components such as a water outlet valve and a filter element for conventionally controlling the outlet of the liquid, so that the coffee liquid is automatically poured into the cup after brewing is completed, and the residue is left in the filter cartridge 51, which will not be described in detail here.

[0067] In some embodiments, Figure 2 and Figure 3 As 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 bearing member 4 through the transmission device 61 to drive the bearing member 4 to reciprocate along the extension direction from the grinding mechanism 2 to the pressed powder brewing mechanism 3. Among them, by setting the matching 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 to drive the bearing member 4 to reciprocate along the extension direction from the grinding mechanism 2 to the pressed powder brewing mechanism 3. Compared with the driving mode of the linear motor, the driving source and the bearing member 4 can be arranged non-coaxially, so as to make full use of the internal space of the automatic coffee brewing machine 100 and improve the compactness of the structure. Of course, in other embodiments, the driving mechanism 6 can also be a device such as a linear motor that can directly drive the bearing member 4 to reciprocate linearly, and no special limitation is made here.

[0068] In some embodiments, Figure 3 As shown, the transmission device 61 includes a gear 62 and a rack 63, the output end of the rotation drive device 64 is connected to the gear 62 and drives the gear 62 to rotate, the rack 63 is arranged on the support member 4, and the gear 62 and the rack 63 are meshed. Through the meshing transmission of the gear 62 and the rack 63, the rotational driving force of the rotation drive device 64 can be well converted into the linear motion of the support member 4, thereby improving the stability of the motion. Of course, in other embodiments, the transmission device 61 can also be other devices that can convert the rotational driving force into the linear driving force, such as a screw transmission, a worm transmission, etc., which are not particularly limited here.

[0069] In some embodiments, Figure 3 As shown, the frame 1 is provided with a guide member 11 extending from the grinding mechanism 2 to the powder pressing and brewing mechanism 3, and the support member 4 is provided with a sliding member 46 adapted to the guide member 11, and the support member 4 is slidably arranged on the guide member 11 through the sliding member 46. The guide member 11 can be a guide groove arranged on the frame 1, and the sliding member 46 can be a sliding block arranged on the support member 4 and adapted to the guide groove, and the support member 4 is slidably arranged on the guide groove through the sliding block to form a linear motion. Alternatively, the guide member 11 can be a guide boss arranged on the frame 1, and the sliding member 46 can be a slide groove opened on the support member 4, and the support member 4 is slidably arranged on the guide boss through the slide groove to form a linear motion, and no special restrictions are made here. Through the matching structure of the guide member 11 and the sliding member 46, the support member 4 can reciprocate along a specific track, so that it can be accurately moved to the grinding mechanism 2 or the powder pressing and brewing mechanism 3.

[0070] In some embodiments, Figure 4 As shown, the compressed powder brewing mechanism 3 includes a brewing body 31, a piston 32 and a piston driving mechanism 33; the piston driving mechanism 33 is arranged on the brewing body 31, and the output end of the piston driving mechanism 33 is connected to the piston 32. When the filter 5 reaches the position of the compressed powder brewing mechanism 3, the piston driving mechanism 33 drives the piston 32 to extend into or out of the filter 5. When the driving mechanism 6 drives the filter 5 to move to the compressed powder brewing mechanism 3, the piston driving mechanism 33 drives the piston 32 to move along the axis of the filter 5 to the inside of the filter 5 to compress the coffee powder and brew the coffee. After the brewing is completed, the piston driving mechanism 33 drives the piston 32 to move in the opposite direction to leave the filter 5 to release the compressed state. At this time, the filter 5 can be moved to the unloading position such as the grinding mechanism 2 for cleaning operation to complete the working cycle. In addition, it should be noted that the other unmentioned structures of the compressed powder brewing mechanism 3 are conventional structures that can automatically cooperate to brew coffee powder into coffee, and no excessive description is given here.

[0071] In some embodiments, Figure 4 As shown, the piston 32 is provided with a hollow water inlet channel 322 along its central axis, and a plurality of water outlet holes 321 are provided at one end of the piston 32 close to the filter 5, which are connected to the water inlet channel 322 and the filter 5. The top of the piston 32 can be connected to the water inlet channel 322 through a water inlet hose, so as to adapt to the up and down movement of the piston 32. When the piston 32 presses the coffee powder in the filter 5, hot water flows from the water inlet channel 322 through the water outlet holes 321 into the filter 5, and the coffee powder is automatically brewed, which has the characteristics of simple structure and no need for manual operation.

[0072] In some embodiments, Figure 4As shown, the compressed powder brewing mechanism 3 is provided with a first positioning device that cooperates with the filter 5. When the filter 5 reaches the position of the compressed powder brewing mechanism 3, the filter 5 is connected to the compressed powder brewing mechanism 3 through the first positioning device. Specifically, the first positioning device includes a first positioning member 34 and a second positioning member 54, wherein the compressed powder brewing mechanism 3 is provided with a first positioning member 34, and the filter 5 is provided with a second positioning member 54 that is magnetically attracted to the first positioning member 34. When the filter 5 reaches the position of the compressed powder brewing mechanism 3, the filter 5 is magnetically attracted to the first positioning member 34 through the second positioning member 54 to be connected to the compressed powder brewing mechanism 3. The first positioning member 34 and the second positioning member 54 can both be magnets. Through the magnetic attraction between the two, when the filter 5 reaches the predetermined position of the compressed powder brewing mechanism 3, it can be accurately limited and fixed under the compressed powder brewing mechanism 3, so that the piston 32 can 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, and the plug-in state of the socket and the plug-in column can also be used to accurately limit and fix the filter 5 under the compressed powder brewing mechanism 3, without any special limitation.

[0073] 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 magnetically attracted to the third positioning member through the fourth positioning member to connect to the grinding mechanism 2. The third positioning member and the fourth positioning member are magnetically attracted to each other, so that when the filter 5 reaches the predetermined position of the grinding mechanism 2, it can be accurately limited and fixed under 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, and there is no special restriction here. Specifically in the present embodiment, the third positioning member 34 and the first positioning member on the filter 5 are the same positioning member, so that the filter 5 can be accurately limited when it is moved to the powder grinding mechanism 2 or the powder pressing and brewing mechanism 3 .

[0074] In some embodiments, Figure 3As shown, the frame 1 is provided with a first limit switch 12 near the grinding mechanism 2, and the filter 5 can contact the first limit switch 12 when it moves to the grinding mechanism 2; the frame 1 is provided with a second limit switch 13 near the pressed powder brewing mechanism 3, and the filter 5 can contact the second limit switch 13 when it moves to the pressed powder brewing mechanism 3. Among them, through the setting of the first limit switch 12 and the second limit switch 13, the filter 5 on the carrier 4 can be accurately controlled to move to the preset position of the grinding mechanism 2 or the pressed powder brewing mechanism 3, that is, stop moving, so as to carry out the next grinding or pressed powder brewing operation.

[0075] The automatic coffee brewing machine 100 further includes a control circuit (not shown) for grinding and brewing coffee beans, and controlling the movement of the filter 5 and the carrier 4. Since the control circuit is a conventional component and the control method is also a conventional method, it is not the focus of the present invention and will not be described in detail here. In addition, the automatic coffee brewing machine 100 may also include conventional components such as a power supply and a display screen, which are not particularly limited here.

[0076] In some embodiments, Figure 1 and Figure 5 As shown, the frame 1 includes a bottom plate 14, a top plate 15, a support plate 16 and two vertical plates 17; the top plate 15 is arranged on the bottom plate 14 through the two vertical plates 17, the support plate 16 is arranged between the bottom plate 14 and the top plate 15, the grinding mechanism 2 and the compressed powder brewing mechanism 3 are dispersedly arranged on the top plate 15 along the left and right directions, and the top plate 15 is provided with a first through hole connected to the powder outlet of the grinding mechanism 2, and a second through hole for the piston 32 of the compressed powder brewing mechanism 3 to move up and down. The bearing member 4 is movably arranged on the support plate 16, and the opening 42 of the bearing member 4 faces the front side facing the user, and a shielding plate 18 is arranged at the front side between the top plate 15 and the support plate 16, and the height of the shielding plate 18 is lower than the height between the top plate 15 and the support plate 16, which can shield the structure of the bearing member 4 and the driving mechanism 6 to form a protective effect on the one hand, and avoid affecting the removal or assembly operation of the filter 5 on the other hand.

[0077] In some embodiments, Figures 6 to 14 As shown, the automatic coffee brewing machine 100 further includes a coffee weighing device 7 , and the coffee weighing device 7 includes a movable part 71 and a weighing bracket 72 .

[0078] The movable member 71 has a placement position 715, and the filter 5 is detachably placed in the placement position 715. The movable member 71 is movably disposed between the bearing member 4 and the weighing bracket 72, and the movable member 71 can move to a first position or a second position; when the movable member 71 is in the first position, the movable member 71 is separated from the weighing bracket 72, and the movable member 71 is supported on the bearing member 4; when the movable member 71 is in the second position, the movable member 71 is separated from the bearing member 4, and the movable member 71 is supported on the weighing bracket 72 to perform a weighing operation.

[0079] Among them, the weighing bracket 72 is fixed on the grinding mechanism 2, and the placement position 715 of the movable part 71 is correspondingly arranged at the powder outlet of the grinding mechanism 2. When weighing is not performed, the movable part 71 is in the first position, the movable part 71 is separated from the weighing bracket 72, and the movable part 71 is supported on the supporting member 4. At this time, the filter 5 can be loaded on 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 is separated from the supporting member 4, and the movable part 71 is supported on the weighing bracket 72. At this time, the coffee powder ground by the grinding mechanism 2 enters the filter 5. At this time, the weighing bracket 72 can weigh the weight of the filter 5 placed on the placement position 715. After weighing to the preset weight, the grinding mechanism 2 closes the powder outlet state. Then the filter 5 can be driven by the driving mechanism 6 to move the supporting member 4, thereby driving the filter 5 to move out from the placement position 715 of the movable member 71, so that the filter 5 is separated from the weighing bracket 72. At this time, the filter 5 can be driven by the driving mechanism 6 to move to the position of the powder pressing brewing mechanism 3 to perform the brewing operation.

[0080] Based on the above-mentioned coffee weighing device 7, a coffee weighing method is provided herein, characterized in that the coffee weighing method comprises the following steps:

[0081] The movable member 71 is switched to the first position, at which time the movable member 71 is separated from the weighing bracket 72, and the movable member 71 is supported on the bearing member 4, and the weighing bracket 72 is in a non-weighing state relative to the movable member 71;

[0082] The movable member 71 is switched to the second position, at which time the movable member 71 is separated from the supporting member 4 and supported on the weighing bracket 72 . At this time, the weighing bracket 72 can weigh the weight of the filter 5 placed on the movable member 71 .

[0083] In summary, the coffee weighing device 7 is configured by movably setting the movable member 71 between the carrier 4 and the weighing bracket 72, and switching the movable member 71 between the first position and the second position. When the movable member 71 is in the first position, the movable member 71 is separated from the weighing bracket 72, and the movable member 71 is supported on the carrier 4. At this time, the weighing bracket 72 will not weigh the filter 5 on the movable member 71. When the movable member 71 is switched to the second position, the movable member 71 is separated from the carrier 4, and the movable member 71 is supported on the weighing bracket 72. At this time, the weighing bracket 72 can weigh the weight of the filter 5 placed on the movable member 71. Therefore, the position state of the movable member 71 can be quickly switched to be supported on the weighing bracket 72 according to the control, so that the coffee powder can be accurately weighed, and when weighing is not required, the position state of the movable member 71 can be switched to be separated from the weighing bracket 72, so that the movement state of the filter 5 will not affect the state of the weighing bracket 72, so that the weighing accuracy of the weighing bracket 72 will not be affected when the filter 5 moves.

[0084] In some embodiments, Fig.10 , Fig.11 and Fig.14 As shown, the weighing bracket 72 is located above the bearing member 4, the movable member 71 is rotatably arranged on the bearing member 4, and the movable member 71 can rotate to the first position or the second position relative to the bearing member 4, and the weighing bracket 72 is provided with a guide portion 721, and the guide portion 721 has a first inclined surface 722, and the movable member 71 can contact the guide portion 721 during the process of rotating from the first position to the second position relative to the bearing member 4, and move upward along the first inclined surface 722 of the guide portion 721 to be separated from the bearing member 4. Wherein, through the structural setting of the first inclined surface 722 of the guide portion 721, wherein the first inclined surface 722 of the guide portion 721 extends obliquely from bottom to top along the direction in which the movable member 71 moves from the first position to the second position, the movable member 71 can move up and down in the axial direction between the weighing bracket 72 and the bearing member 4 when moving along the guide portion 721, so that the movable member 71 can switch to be supported on the bearing member 4 or the weighing bracket 72.

[0085] In some embodiments, Fig. 9 , Fig.13 and Fig.14As shown, the weighing bracket 72 includes a weighing body 723 and a supporting ring body 724 connected to the weighing body 723; the supporting ring body 724 is provided with the guiding portion 721; the movable member 71 is provided with a receiving ring groove 711, and the groove top wall of the receiving ring groove 711 is formed with a guiding groove 712 which is slidably matched with the guiding portion 721, and the guiding groove 712 has a second inclined surface, and the supporting ring body 724 is accommodated in the receiving ring groove 711, wherein the second inclined surface of the guiding groove 712 extends obliquely from bottom to top along the direction in which the movable member 4 moves from the first position to the second position, and the guiding groove 712 is driven to slide relative to the guiding portion 721 by rotating the movable member 71, so as to realize the reciprocating movement of the movable member 71 between the supporting member 4 and the supporting ring body 724. There is a gap between the receiving annular groove 711 of the movable member 71 and the supporting ring body 724 in the axial direction. When the movable member 71 is in the first position, there is no contact between the guide portion 721 of the supporting ring body 724 and the guide groove 712 of the movable member 71, and the weighing bracket 72 is not subjected to force. The movable member 71 is supported by the supporting member 4 located below. When the movable member 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 member 71 drives the movable member 71 to move upward in the axial direction between the supporting member 4 and the weighing bracket 72 to separate from the supporting member 4, and switch to the supporting ring body 724 to support the movable member 71, so as to accurately weigh the coffee powder in the filter 5.

[0086] In some embodiments, Fig.13 and Fig.14 As shown, three guide portions 721 are provided, and the three guide portions 721 are evenly arranged on the weighing bracket 72, and the guide portions 721 are arc-shaped structures. Correspondingly, three guide grooves 712 are also provided, and the three guide portions 721 are provided in a one-to-one correspondence with the three guide grooves 712. It can be understood that by providing the three guide portions 721, after the movable member 71 rotates to the second position relative to the bearing member 4, the movable member 71 can be evenly supported by the three guide portions 721, so as to be stably supported on the weighing bracket 72, thereby improving the weighing accuracy.

[0087] In some embodiments, Fig. 9 , Fig.13 and Fig.14As shown, the side wall of the accommodating ring groove 711 is provided with a first limiting groove 713 and a second limiting groove, and the edge of the supporting ring body 724 is provided with an elastic limiting member 725. When the movable member 71 rotates to the first position relative to the supporting ring body 724, the elastic limiting member 725 is elastically clamped in the first limiting groove 713, and when the movable member 71 rotates to the second position relative to the supporting ring body 724, the elastic limiting member 725 is elastically clamped in the second limiting groove. By providing the elastic limiting member 725, when the movable member 71 rotates to the first position or the second position, it can be limited to the first limiting groove 713 or the second limiting groove to form an indication of rotation in place, and limit the further rotation of the movable member 71, effectively avoiding excessive rotation affecting the weighing effect.

[0088] Specifically in this embodiment, the elastic stopper 725 includes a connecting column 7251 and a stopper block 7252; the connecting column 7251 is arranged on the outer ring edge of the support ring body 724 and extends along the circumferential direction of the support ring body 724, and a gap is formed between the column body of the connecting column 7251 and the outer ring edge of the support ring body 724, the connecting column 7251 has elastic properties, and the end of the connecting column 7251 is connected to the stopper block 7252. The gap is formed between the connecting column 7251 and the support ring body 724, so that the connecting column 7251 has elastic movement space, can adapt to deformation according to the groove width of the accommodating ring groove 711, so that it can smoothly fit into the stopper groove or detach from the stopper groove.

[0089] In some embodiments, Fig. 9 As shown, the first limiting grooves 713 are provided with two, and the two first limiting grooves 713 are centrally symmetrically arranged on the side wall of the accommodating annular groove 711. The second limiting grooves are provided with two, and the two second limiting grooves are centrally symmetrically arranged on the side wall of the accommodating annular groove 711. Correspondingly, the elastic limiting members 725 are adapted to be provided with two, and the two elastic limiting members 725 are centrally symmetrically arranged relative to the supporting ring body 724.

[0090] In some embodiments, Fig. 9 As shown, the weighing body 723 includes a support suspension 7231 and a weighing sensor 7232, wherein the support suspension 7231 is connected to the support ring body 724, and the weighing sensor 7232 is disposed on the support suspension 7231. The weighing sensor 7232 is fixed to an external mechanism such as the frame 1 or the grinding mechanism 2 of the automatic coffee brewing machine 100 through the support suspension 7231, so that the weighing bracket 72 is suspended above the bearing member 4 as a whole and there is a space between the weighing bracket 72 and the bearing member 4, so that the movable member 71 can move in the axial direction during the relative movement of the weighing bracket 72 to switch to the support of the bearing member 4 or the weighing bracket 72.

[0091] In some embodiments, the support suspension 7231 includes a horizontal frame and two vertical frames, the horizontal frame is supported by the two vertical frames, the weighing sensor 7232 is arranged on the horizontal frame, and the bottom ends of the two vertical frames are connected to the support ring body 724, wherein the horizontal frame can be fixedly connected to the grinding mechanism 2 or the frame 1.

[0092] In some embodiments, Figure 3 , Fig.10 and Fig.11 As shown, the placement position 715 is a snap-in groove that penetrates along the first direction of the movable member 71. The filter 5 can enter the snap-in groove along one end of the first direction to be fixed, and can also be moved out through one end of the first direction to be separated from the snap-in groove. The driving mechanism 6 drives the support member 4 to move along the second direction, wherein when the movable member 71 is located at the second position, the first direction is consistent with the extension direction of the second direction, and the driving mechanism 6 can drive the support member 4 to drive the filter 5 to be separated from the placement position 715 and move to the compressed powder brewing mechanism 3. Therefore, the whole process of grinding, weighing and brewing can be automatically completed by loading the filter 5 in the snap-in groove of the movable member 71 and moving it to the second position, which has the characteristics of simple structure and convenient operation.

[0093] In some embodiments, Fig. 9 As shown, the movable member 71 includes a fixed plate 716 and a placement frame 717, both of which are axially hollow structures, and a step groove is formed on the placement frame 717, the fixed plate 716 is arranged on the placement frame 717 so that the two cooperate to form the accommodating ring groove 711, the side of the fixed plate 716 close to the placement frame 717 forms the guide groove 712, the peripheral wall of the step groove of the placement frame 717 is provided with the first limiting groove 713 and the second limiting groove, and the placement frame 717 is provided with the placement position 715. Among them, the placement frame 717 can be placed on the bearing member 4, and can be rotated to the first position or the second position relative to the bearing member 4.

[0094] For ease of understanding, Figures 1 to 14 As shown, this embodiment provides an overall working process of an automatic coffee brewing machine 100:

[0095] In the initial state, the movable member 71 is in the first position. At this time, there is no contact between the guide portion 721 of the support ring body 724 and the guide groove 712 of the movable member 71, and the weighing bracket 72 is not subjected to force. At this time, the penetration direction of the clamping groove of the movable member 71 is the front-to-back direction, and the filter 5 can be inserted along the clamping groove and placed on the movable member 71. After the filter 5 is placed, the movable member 71 is rotated. During the process of the movable member 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 portion 721. At this time, the continued rotation of the movable member 71 will drive the movable member 7 1 moves upward in the axial direction between the carrier 4 and the weighing bracket 72 to detach from the carrier 4, and switches to the support ring 724 to support the movable member 71. At this time, the coffee powder ground by the grinding mechanism 2 enters the filter 5, and the weighing bracket 72 can weigh the coffee powder in the filter 5. After weighing to a preset weight, the grinding mechanism 2 closes the powder discharging state. At this time, the penetrating direction of the clamping groove of the movable member 71 is the left-right direction, which is consistent with the direction in which the driving mechanism 6 drives the carrier 4 to move. The driving mechanism 6 drives the carrier 4 to drive the filter 5 to detach from the clamping groove and move to the powder pressing and brewing mechanism 3. Therefore, the whole process of grinding, weighing and brewing can be automatically completed when the filter 5 is loaded on the clamping groove of the movable member 71 and moved to the second position, which has the characteristics of simple structure and convenient operation.

[0096] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. Automatic coffee brewing machine, characterized in that, The automatic coffee brewing machine comprises a frame and a grinding mechanism, a powder pressing and brewing mechanism, a bearing, a filter and a driving mechanism arranged on the frame; The powder grinding mechanism and the powder pressing and brewing mechanism are arranged in sequence; The bearing member is movably arranged on the frame, and the filter is detachably arranged on the bearing member; The output end of the driving mechanism is connected to the supporting member. When the filter is placed on the supporting member, the driving mechanism can drive the filter on the supporting member to move to the grinding mechanism or the powder pressing and brewing mechanism.

2. The automatic coffee brewing machine according to claim 1, characterized in that: The compressed powder brewing mechanism is provided with a first positioning device cooperating with the filter, and when the filter reaches the position of the compressed powder brewing mechanism, the filter is connected to the compressed powder brewing mechanism through the first positioning device; and / or, The grinding mechanism is provided with a second positioning device matched 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 according to claim 1, characterized in that: The carrier is provided with a clamping hole, which is a hole structure that is recessed inwardly along one side edge of the carrier to form an opening on one side; the filter is detachably accommodated in the clamping hole, and the filter can be moved out of the clamping hole through the opening.

4. The automatic coffee brewing machine according to claim 3, characterized in that: The orientation direction of the opening intersects with the movable direction of the carrier; and / or the carrier includes a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate and the third connecting plate are vertically 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.

5. The automatic coffee brewing machine according to claim 3, characterized in that: The filter comprises a filter cartridge and a handle, wherein the handle is arranged on the cartridge body of the filter cartridge; a card body is arranged on the top end of the filter cartridge, wherein the card body is detachably mounted on the edge of the card hole, and the filter cartridge can be removed through the opening by rotating and moving the handle.

6. The automatic coffee brewing machine according to any one of claims 1 to 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 bearing member through the transmission device to drive the bearing member to reciprocate along the extension direction from the grinding mechanism to the powder pressing and brewing mechanism.

7. The automatic coffee brewing machine according to claim 6, characterized in that: The transmission device comprises 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 arranged on the bearing component, and the gear and the rack are meshed.

8. The automatic coffee brewing machine according to any one of claims 1 to 5, characterized in that: The compressed powder brewing mechanism comprises a brewing body, a piston and a piston driving mechanism; The piston driving mechanism is arranged on the brewing body, and the output end of the piston driving mechanism is connected to the piston. When the filter reaches the position of the compressed powder brewing mechanism, the piston driving 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 to 5, characterized in that: The automatic coffee brewing machine also includes a coffee weighing device; the coffee weighing device includes a movable part and a weighing bracket; The movable part has a placement position; the filter is detachably placed at the placement position; The movable part is movably arranged between the bearing part and the weighing bracket, and the movable part can move to a first position or a second position; when the movable part is in the first position, the movable part is separated from the weighing bracket, and the movable part is supported on the bearing part; when the movable part is in the second position, the movable part is separated from the bearing part, and the movable part is supported on the weighing bracket to perform weighing operations.

10. The automatic coffee brewing method is characterized by: The automatic coffee brewing method comprises the following steps: Assembling the filter on the carrier; The control driving mechanism drives the filter on the carrier to move to the grinding mechanism, and the grinding mechanism performs a grinding operation and pours the ground coffee powder into the filter; The control driving mechanism drives the filter on the carrier to move to the powder pressing and brewing mechanism, at which time the powder pressing and brewing mechanism fixes the filter and performs powder pressing and brewing processes; After brewing is completed, the driving mechanism is controlled to drive the filter on the carrier to move to the unloading position, and the filter is removed from the carrier for cleaning.

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