Coffee weighing device and automatic coffee brewing machine

Abstract

The utility model belongs to the technical field of coffee brewing equipment, and discloses a coffee weighing device and an automatic coffee brewing machine. The coffee weighing device comprises a movable part, a bearing part and a weighing frame, the movable part is provided with a placing position, and the placing position is used for detachably installing the filtering container; the movable part is movably arranged between the bearing part and the weighing frame, and the movable part can move to a first position or a second position; when the movable part is located at the first position, the movable part is separated from the weighing frame and is supported on the bearing part. When the movable part is located at the second position, the movable part is separated from the bearing part, and the movable part is supported on the weighing frame to carry out weighing operation. The coffee weighing device can be quickly switched to the weighing state or the non-weighing state, and the state of the weighing frame cannot be influenced by the movement state of the filtering container, so that the weighing precision of the weighing frame cannot be influenced when the filtering container moves.

Description

Technical Field

[0001] This utility model belongs to the technical field of coffee brewing equipment, specifically relating to a coffee weighing device and 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, automatic coffee brewing machines with both grinding and brewing functions have emerged on the market. To improve the quality of the brewed coffee, it is usually necessary to control the weight of the brewed coffee powder or beans. Currently, the weighing method involves placing the filter container used to hold the coffee beans or powder directly on a weighing sensor during operation. However, because the filter container moves during operation, it applies a lateral force to the weighing sensor, thus affecting the weighing accuracy and lifespan of the sensor. Utility Model Content

[0003] The purpose of this invention is to provide a method for weighing coffee powder in a filter container without affecting the weighing accuracy when the filter container is moved.

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

[0005] The first aspect of this utility model provides a coffee weighing device, which includes a movable component, a load-bearing component, and a weighing frame;

[0006] The movable component has a placement position for detachably installing the filter container;

[0007] The movable component is movably disposed between the support component and the weighing frame, 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 frame, and the movable component is supported by the support component; when the movable component is in the second position, the movable component is detached from the support component, and the movable component is supported by the weighing frame to perform a weighing operation.

[0008] In some embodiments, the weighing frame is located above the support member, the movable member is rotatably mounted on the support member, and the movable member can rotate relative to the support member to a first position or a second position. The weighing frame is provided with a guide portion having a first inclined surface. During the process of the movable member rotating relative to the support member from the first position to the second position, it can contact the guide portion and move upward along the first inclined surface of the guide portion until it disengages from the support member.

[0009] In some embodiments, the weighing frame includes a weighing body and a support ring connected to the weighing body; the support ring is provided with the guide portion; the movable member is provided with a receiving ring groove, and the top wall of the receiving ring groove forms a guide groove that slides with the guide portion, the guide groove has a second inclined surface, the support ring is accommodated in the receiving ring groove, and the guide groove slides relative to the guide portion by rotating the movable member.

[0010] In some embodiments, the groove sidewall of the receiving ring groove is provided with a first limiting groove and a second limiting groove, and the edge of the supporting ring body is provided with an elastic limiting member. When the movable member rotates relative to the supporting ring body to a first position, the elastic limiting member is elastically engaged in the first limiting groove. When the movable member rotates relative to the supporting ring body to a second position, the elastic limiting member is elastically engaged in the second limiting groove.

[0011] In some embodiments, the elastic limiting member includes a connecting post and a limiting block; the connecting post is disposed on the outer ring edge of the support ring and extends along the circumferential direction of the support ring, and the post body of the connecting post forms a gap with the outer ring edge of the support ring; the connecting post has elastic properties, and the limiting block is connected to the end of the connecting post.

[0012] In some embodiments, the weighing body includes a support suspension and a weighing sensor, the support suspension being connected to the support ring, and the weighing sensor being disposed on the support suspension.

[0013] In some embodiments, three guide portions are provided, which are evenly arranged on the weighing frame, and the guide portions are arc-shaped.

[0014] The second aspect of this utility model provides an automatic coffee brewing machine, which includes a coffee grinding device, a filter container, and a coffee weighing device as described above; the coffee grinding device has a powder outlet, the placement position is correspondingly disposed at the powder outlet of the coffee grinding device, and the filter container is detachably placed at the placement position.

[0015] In some embodiments, the automatic coffee brewing machine further includes a frame and brewing devices and a power source device disposed on the frame;

[0016] The carrier is movably mounted on the frame; the output end of the power source device is connected to the carrier and can drive the carrier to move along the second direction; the placement position is a snap-fit ​​groove that passes through the first direction of the movable part; when the movable part is in the second position, the first direction and the second direction extend in the same direction; the power source device can drive the filter container to leave the placement position and move to the grinding device through the carrier.

[0017] In some embodiments, the brewing apparatus is provided with a first positioning device that cooperates with the filter container; when the filter container reaches the position of the brewing apparatus, the filter container is connected to the brewing apparatus via the first positioning device; and / or,

[0018] The grinding device is equipped with a second positioning device that cooperates with the filter container. When the filter container reaches the position of the grinding device, the filter container is connected to the grinding device through the second positioning device.

[0019] The technical solution provided by this utility model has the following advantages and effects:

[0020] This coffee weighing device features a movable component positioned between a support member and a weighing frame. The component can be switched between a first position and a second position. In the first position, the component is detached from the weighing frame and supported by the support member; in this position, the weighing frame does not weigh the filter container on the component. In the second position, the component is detached from the support member and supported by the weighing frame, allowing the frame to weigh the filter container placed on it. Therefore, by controlling the position of the movable component, it can quickly switch to support the weighing frame for accurate weighing of coffee powder. When weighing is not needed, the component can be separated from the weighing frame so that the movement of the filter container does not affect the weighing frame's state, thus ensuring that the weighing accuracy is not affected by the movement of the filter container. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembly structure of an automatic coffee brewing machine according to one embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of an automatic coffee brewing machine;

[0023] Figure 3 yes Figure 1 A schematic diagram of the internal structure of an automatic coffee brewing machine;

[0024] Figure 4This is a schematic diagram of the combined structure of the brewing equipment and the filtration container;

[0025] Figure 5 This is a schematic diagram of the frame structure of an automatic coffee brewing machine;

[0026] 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;

[0027] Figure 7 This is a schematic diagram of the assembly structure of the coffee weighing device and the coffee grinding device according to an embodiment of the present invention;

[0028] Figure 8 yes Figure 7 A schematic diagram of the exploded structure of a coffee weighing device and a coffee grinding device;

[0029] Figure 9 This is an exploded structural diagram of the coffee weighing device according to an embodiment of the present invention;

[0030] 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;

[0031] 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;

[0032] Figure 12 This is a partial disassembly schematic diagram of the coffee weighing device according to an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the structure of the fixing plate according to an embodiment of the present utility model;

[0034] Figure 14 This is a schematic diagram of the structure of the support ring body according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100. Automatic coffee brewing machine;

[0037] 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 device; 3. Brewing device; 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 container; 51. Filter cylinder; 52. Locking body; 53. Handle; 54. Second positioning component; 6. Power source device; 61. Transmission assembly; 62. Gear; 63. Rack; 64. Rotary drive device;

[0038] 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 rack; 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

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 device 2, a brewing device 3, a support 4, a filter container 5, and a power source device 6 mounted on the frame 1.

[0044] The grinding device 2 and the brewing device 3 are arranged sequentially. A support member 4 is movably mounted on the frame 1, and a filter container 5 is detachably mounted on the support member 4. When the filter container 5 is mounted on the support member 4, it is stably supported and can be moved to the position of the grinding device 2 or the brewing device 3 for grinding or brewing operations. When the filter container 5 needs to be removed for cleaning, external force is applied to it to detach it from the support member 4, allowing it to be removed from the automatic coffee brewing machine 100 for cleaning. The operation is simple and convenient.

[0045] The output end of the power source device 6 is connected to the carrier 4. When the filter container 5 is placed on the carrier 4, the power source device 6 can move the filter container 5 on the carrier 4 to the grinding device 2 or the brewing device 3. Specifically, when the power source device 6 moves the filter container 5 to the grinding device 2, it moves the filter container 5 to the powder outlet of the grinding device 2. At this time, the grinding device 2 is started to grind coffee powder. The grinding device 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 container 5 is filled with a certain amount of coffee powder, the power source device 6 moves the filter container 5 to the brewing device 3. At this time, the brewing device 3 fixes the filter container 5 and performs tamping and brewing processes.

[0046] In summary, the automatic coffee brewing machine 100 allows for quick assembly, disassembly, and cleaning of the filter container 5 by detachably connecting it to the carrier 4. When the filter container 5 is to be assembled on the carrier 4, the power source 6 can drive the filter container 5 to move sequentially to the positions of the grinding device 2 and the brewing device 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 container 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 container 5 can be removed from the carrier 4 for cleaning, which can effectively avoid the problem of coffee residue remaining on the filter container 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.

[0047] 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 container 5 is detachably accommodated in the locking hole 41, and the filter container 5 can be moved out of the locking hole 41 through the opening 42. When it is necessary to assemble the filter container 5 onto the carrier 4, the filter container 5 is inserted into the locking hole 41 through the opening 42 and fixed. For example, the filter container 5 can be locked in the locking hole 41 by a clip, or it can be held in the locking hole 41 by elastic force. Any structure that can fix the filter container 5 in the locking hole 41 in its natural state and can be released from the locking hole 41 under external force is applicable, and no particular limitation is made here. At this time, the filter container 5 can be stably loaded on the carrier 4, and the filter container 5 can be moved to the position of the grinding device 2 or the brewing device 3 for grinding or brewing operations. When the filter container 5 needs to be removed for cleaning, external force is applied to the filter container 5, and the filter container 5 is moved out of the card hole 41 through the opening 42. The filter container 5 can then be removed from the automatic coffee brewing machine 100 for cleaning. The operation is simple and convenient.

[0048] In some embodiments, such 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 container 5 can only detach from the opening 42 under the action of an external force in a specific direction. This effectively avoids the problem of the filter container 5 detaching from the opening 42 due to inertia during the reciprocating movement of the support member 4 driven by the power source device 6 in the grinding device 2 and the brewing device 3.

[0049] In some embodiments, such as 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 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 an opening 42. The opening 42 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 container 5 from the carrier 4, and the filter container 5 can be stably loaded on the carrier 4.

[0050] In some embodiments, such as Figure 2 and Figure 3As shown, the filter container 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 container 5 is adapted to the structure of the U-shaped retaining hole 41. Specifically, in the filter container 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 attached to the edge of the retaining hole 41. Thus, the filter container 5 is suspended on the support member 4, which can stably load the filter container 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 container 5 from the locking hole 41 of the support member 4 through rotation and / or movement, making operation simple and convenient. In addition, the bottom of the filter cylinder 51 can 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 cylinder 51. This will not be described in detail here.

[0051] In some embodiments, such as Figure 2 and Figure 3 As shown, the power source device 6 includes a rotary power source device 64 and a transmission assembly 61. The output end of the rotary power source device 64 is connected to the carrier 4 through the transmission assembly 61, so as to drive the carrier 4 to reciprocate along the extension direction from the grinding device 2 to the brewing device 3. By setting the cooperative structure of the rotary power source device 64 and the transmission assembly 61, the rotational driving force of the rotary power source device 64 is converted into a linear driving force through the transmission action of the transmission assembly 61, so as to drive the carrier 4 to reciprocate linearly along the extension direction from the grinding device 2 to the brewing device 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 power source device 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.

[0052] In some embodiments, such as Figure 3As shown, the transmission assembly 61 includes a gear 62 and a rack 63. The output end of the rotary power source 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 power source 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 assembly 61 can also be other devices that can convert rotational driving force into linear driving force, such as screw drives, worm gear drives, etc., and no particular limitation is made here.

[0053] In some embodiments, such as Figure 3 As shown, the frame 1 is provided with a guide member 11 extending along the grinding device 2 to the brewing device 3, and 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 device 2 or the brewing device 3.

[0054] In some embodiments, such as Figure 4 As shown, the brewing device 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 container 5 reaches the position of the brewing device 3, the piston drive mechanism 33 drives the piston 32 to extend into or out of the filter container 5. Specifically, when the power source device 6 moves the filter container 5 to the brewing device 3, the piston drive mechanism 33 drives the piston 32 to move along the axis of the filter container 5 to the inside of the filter container 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 container 5 and release the compaction. At this time, the filter container 5 can be moved to a feeding position, such as the grinding device 2, for cleaning to complete the work cycle. Furthermore, it should be noted that the other unmentioned structures of the brewing device 3 are conventional structures capable of automatically cooperating to brew coffee powder into coffee, and will not be described in detail here.

[0055] In some embodiments, such as Figure 4As shown, the piston 32 has a hollow water inlet channel 322 along its central axis, and multiple water outlet holes 321 connecting the water inlet channel 322 and the filter container 5 are opened at the end of the piston 32 near the filter container 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 against the coffee powder in the filter container 5, hot water flows into the filter container 5 from the water inlet channel 322 through the water outlet holes 321, automatically brewing the coffee powder. This design features a simple structure and requires no manual operation.

[0056] In some embodiments, such as Figure 4 As shown, the brewing device 3 is equipped with a first positioning device that cooperates with the filter container 5. When the filter container 5 reaches the position of the brewing device 3, it is connected to the brewing device 3 through the first positioning device. Specifically, the first positioning device includes a first positioning element 34 and a second positioning element 54. The brewing device 3 is provided with the first positioning element 34, and the filter container 5 is provided with the second positioning element 54, which is magnetically attracted to the first positioning element 34. When the filter container 5 reaches the position of the brewing device 3, it is magnetically attracted to the first positioning element 34 through the second positioning element 54 to connect with the brewing device 3. Both the first positioning element 34 and the second positioning element 54 can be magnets. Through the magnetic attraction between them, the filter container 5 can be accurately positioned and fixed below the brewing device 3 when it reaches the predetermined position, thereby allowing the piston 32 to be accurately pressed into the filter container 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 used in a plug-in state with matching holes and posts to accurately position and fix the filter container 5 below the brewing device 3. No special limitation is made here.

[0057] In some embodiments, the grinding device 2 is provided with a second positioning device that cooperates with the filter container 5. When the filter container 5 reaches the position of the grinding device 2, it connects to the grinding device 2 through the second positioning device. Specifically, the second positioning device includes a third positioning member and a fourth positioning member. The grinding device 2 is provided with a third positioning member, and the filter container 5 is provided with a fourth positioning member that is magnetically attracted to the third positioning member. When the filter container 5 reaches the position of the grinding device 2, it connects to the grinding device 2 through the magnetic attraction between the fourth and third positioning members. The magnetic attraction between the third and fourth positioning members ensures that the filter container is accurately positioned and fixed below the grinding device 2 when it reaches the predetermined position, so that the filter container 5 can accurately catch the ground coffee powder. Specifically, in this embodiment, the third positioning member 34 on the filter container 5 is the same as the first positioning member, so that the filter container 5 can be accurately positioned when it moves to the grinding device 2 or the brewing device 3.

[0058] In some embodiments, such as Figure 3 As shown, a first limit switch 12 is installed on the frame 1 near the grinding device 2, allowing the filter container 5 to contact the first limit switch 12 when it moves to the grinding device 2. A second limit switch 13 is installed on the frame 1 near the brewing device 3, allowing the filter container 5 to contact the second limit switch 13 when it moves to the brewing device 3. The first and second limit switches 12 and 13 allow for precise control of the filter container 5 on the carrier 4, stopping its movement at a preset position on either the grinding device 2 or the brewing device 3, before proceeding to the next grinding or tamping brewing operation.

[0059] 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 container 5 and the carrier 4. Since this is a conventional component and the control method is also conventional, it is 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.

[0060] In some embodiments, such 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 device 2 and the brewing device 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 device 2, and a second through hole for the piston 32 of the brewing device 3 to move up and down. The support member 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 support member 4 and the power source device 6, and also prevents interference with the removal or assembly of the filter container 5.

[0061] In some embodiments, such 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 frame 72.

[0062] The movable component 71 has a placement position 715 for detachably mounting the filter container 5. The movable component 71 is movably disposed between the support member 4 and the weighing frame 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 frame 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 frame 72 for weighing operation.

[0063] The weighing frame 72 is fixed to the grinding device 2, and the placement position 715 of the movable part 71 is correspondingly set at the powder outlet of the grinding device 2. When no weighing is being performed, the movable part 71 is in the first position, detached from the weighing frame 72, and supported on the carrier 4. At this time, the filter container 5 can be loaded into the placement position 715 of the movable part 71. After the filter container 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 frame 72. At this time, the coffee powder ground by the grinding device 2 enters the filter container 5. The weighing frame 72 can weigh the filter container 5 placed on the placement position 715. After weighing to the preset weight, the grinding device 2 shuts off the powder discharging state. Then the filter container 5 can be driven by the power source device 6 to move the carrier 4, thereby moving the filter container 5 from the placement position 715 of the movable part 71 so that the filter container 5 is separated from the weighing frame 72. At this time, the filter container 5 can be moved to the position of the brewing device 3 under the drive of the power source device 6 to carry out the brewing operation.

[0064] 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:

[0065] When the movable part 71 is switched to the first position, the movable part 71 is disengaged from the weighing frame 72 and is supported on the bearing member 4. The weighing frame 72 is in a non-weighing state relative to the movable part 71.

[0066] When the movable part 71 is moved to the second position, the movable part 71 is detached from the support part 4 and is supported by the weighing frame 72. At this time, the weighing frame 72 can weigh the filter container 5 placed on the movable part 71.

[0067] In summary, the coffee weighing device 7 movably positions the movable part 71 between the support member 4 and the weighing frame 72. By switching the movable part 71 between a first position and a second position, when the movable part 71 is in the first position, it is detached from the weighing frame 72 and supported on the support member 4. At this time, the weighing frame 72 will not weigh the filter container 5 on the movable part 71. When the movable part 71 is switched to the second position, it is detached from the support member 4 and supported on the weighing frame 72. At this time, the weighing frame 72 can weigh the filter container 5 placed on the movable part 71. Therefore, the position of the movable part 71 can be quickly switched to support the weighing frame 72 according to the position state of the control component 71, so as to accurately weigh the coffee powder. When weighing is not required, the position state of the movable part 71 can be switched to separate from the weighing frame 72, so that the movement state of the filter container 5 will not affect the state of the weighing frame 72, and thus the weighing accuracy of the weighing frame 72 will not be affected when the filter container 5 moves.

[0068] In some embodiments, such as Figure 10 , Figure 11 and Figure 14 As shown, the weighing frame 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 frame 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 from bottom to top along the direction in which the movable member 71 moves from the first position to the second position, so that when the movable member 71 moves along the guide portion 721, it can move up and down in the axial direction between the weighing frame 72 and the support member 4, thereby enabling the movable member 71 to switch between being supported on the support member 4 or the weighing frame 72.

[0069] In some embodiments, such as Figure 9 , Figure 13 and Figure 14As shown, the weighing frame 72 includes a weighing body 723 and a support ring 724 connected to the weighing body 723; a guide portion 721 is provided on the support ring 724; a receiving ring groove 711 is provided on the movable member 71, 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. The second inclined surface of the guide groove 712 extends from bottom to top 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 frame 72 is not under stress. The movable component 71 is supported by the supporting 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 supporting component 4 and the weighing frame 72 to disengage from the supporting component 4 and switch to the supporting ring 724 to support the movable component 71, so as to accurately weigh the coffee powder in the filter container 5.

[0070] In some embodiments, such as Figure 13 and Figure 14 As shown, three guide sections 721 are provided, evenly arranged on the weighing frame 72, and each guide section 721 has an arc-shaped structure. Correspondingly, three guide grooves 712 are also provided, with each of the three guide sections 721 corresponding to one of the three guide grooves 712. It can be understood that by providing these three guide sections 721, after the movable part 71 rotates relative to the support member 4 to the second position, the movable part 71 can be evenly supported by these three guide sections 721, thereby stably supporting itself on the weighing frame 72 and improving weighing accuracy.

[0071] In some embodiments, such 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. 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 end of the connecting post 7251 is connected to the limiting block 7252. The gap between the connecting post 7251 and the supporting ring 724 provides the connecting post 7251 with elastic movement space, allowing it to adapt to deformation according to the groove width of the receiving ring groove 711, thereby smoothly engaging into or disengaging from the limiting groove.

[0072] In some embodiments, such 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.

[0073] In some embodiments, such 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 mounted on the support suspension 7231. The weighing sensor 7232 is fixed to an external mechanism, such as the frame 1 or the grinding device 2 of the automatic coffee brewing machine 100, via the support suspension 7231. This allows the weighing frame 72 to be suspended above the support member 4 with a gap between them, facilitating axial movement of the movable member 71 relative to the weighing frame 72 during its movement, switching between being supported on the support member 4 or the weighing frame 72.

[0074] 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, and a weighing sensor 7232 is disposed on the horizontal frame. The bottom ends of the two vertical frames are connected to a support ring 724. The horizontal frame can be fixedly connected to the grinding device 2 or the frame 1. Specifically, the vertical frame is Z-shaped to avoid the upper end face of the movable member 71 and to facilitate the support ring 724 extending into the receiving groove 711 of the movable member 71.

[0075] In some embodiments, such as Figure 3 , Figure 10 and Figure 11 As shown, the placement position 715 is a snap-fit ​​groove extending through the first direction of the movable member 71. The filter container 5 can slide into the snap-fit ​​groove at one end along the first direction for fixation, or slide out through the same end to detach from the snap-fit ​​groove. The power source device 6 drives the carrier member 4 to move along the 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 power source device 6 can drive the carrier member 4 to move the filter container 5 away from the placement position 715 and to the brewing device 3. Thus, the entire process of grinding, weighing, and brewing can be automatically completed simply by loading the filter container 5 into the snap-fit ​​groove of the movable member 71 and moving it to the second position. This method features a simple structure and convenient operation.

[0076] In some embodiments, such 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 fit together to form a 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.

[0077] 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:

[0078] 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 frame 72 is not under any 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 container 5 can be inserted into the movable part 71 through the opening of the snap-fit ​​groove. After the filter container 5 is placed, the movable part 71 is rotated. During the rotation of the movable part 71 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 frame 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 device 2 enters the filter container 5. The weighing frame 72 can weigh the coffee powder in the filter container 5. After weighing to the preset weight, the grinding device 2 closes the powder dispensing state. At this time, the through direction of the locking groove of the movable part 71 is left and right, which is consistent with the direction of the movement of the carrier 4 driven by the power source device 6. The power source device 6 drives the carrier 4 to move the filter container 5 away from the locking groove and to the brewing device 3. Thus, the entire process of grinding, weighing and brewing can be automatically completed by loading the filter container 5 into the locking groove of the movable part 71 and moving it to the second position. It has the characteristics of simple structure and convenient operation.

[0079] 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. A coffee weighing device, characterized in that, The coffee weighing device includes a movable component, a load-bearing component, and a weighing frame; The movable component has a placement position for detachably installing the filter container; The movable component is movably disposed between the support component and the weighing frame, 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 frame, and the movable component is supported by the support component; when the movable component is in the second position, the movable component is detached from the support component, and the movable component is supported by the weighing frame to perform a weighing operation.

2. The coffee weighing device as described in claim 1, characterized in that, The weighing frame is located above the support member, the movable member is rotatably mounted on the support member, and the movable member can rotate relative to the support member to a first position or a second position. The weighing frame is provided with a guide portion having a first inclined surface. During the process of the movable member rotating relative to the support member from the first position to the second position, it can contact the guide portion and move upward along the first inclined surface of the guide portion until it disengages from the support member.

3. The coffee weighing device as described in claim 2, characterized in that, The weighing frame includes a weighing body and a support ring connected to the weighing body; the support ring is provided with the guide part; the movable part is provided with a receiving ring groove, and the top wall of the receiving ring groove forms a guide groove that slides with the guide part. The guide groove has a second inclined surface. The support ring is accommodated in the receiving ring groove. By rotating the movable part, the guide groove is driven to slide relative to the guide part.

4. The coffee weighing device as described in claim 3, characterized in that, The groove sidewall of the receiving ring groove is provided with a first limiting groove and a second limiting groove. The edge of the supporting ring body is provided with an elastic limiting member. When the movable member rotates relative to the supporting ring body to the first position, the elastic limiting member is elastically engaged in the first limiting groove. When the movable member rotates relative to the supporting ring body to the second position, the elastic limiting member is elastically engaged in the second limiting groove.

5. The coffee weighing device as described in claim 4, characterized in that, The elastic limiting member includes a connecting post and a limiting block; the connecting post is disposed on the outer ring edge of the support ring and extends along the circumferential direction of the support ring, and a gap is formed between the post body and the outer ring edge of the support ring; the connecting post has elastic properties; and the limiting block is connected to the end of the connecting post.

6. The coffee weighing device according to any one of claims 3-5, characterized in that, The weighing body includes a support suspension and a weighing sensor. The support suspension is connected to the support ring, and the weighing sensor is mounted on the support suspension.

7. The coffee weighing device according to any one of claims 2-5, characterized in that, The guide section is provided in three parts, which are evenly arranged on the weighing frame, and the guide section is an arc-shaped structure.

8. An automatic coffee brewing machine, characterized in that, The automatic coffee brewing machine includes a coffee grinding device, a filter container, and a coffee weighing device as described in any one of claims 1-7; the coffee grinding device has a powder outlet, the placement position is correspondingly disposed at the powder outlet of the coffee grinding device, and the filter container is detachably placed at the placement position.

9. The automatic coffee brewing machine as described in claim 8, characterized in that, The automatic coffee brewing machine also includes a frame and a brewing device and a power source device mounted on the frame; The carrier is movably mounted on the frame; the output end of the power source device is connected to the carrier and can drive the carrier to move along the second direction; the placement position is a snap-fit ​​groove that passes through the first direction of the movable part; when the movable part is in the second position, the first direction and the second direction extend in the same direction; the power source device can drive the filter container to leave the placement position and move to the grinding device through the carrier.

10. The automatic coffee brewing machine as described in claim 9, characterized in that, The brewing apparatus is equipped with a first positioning device that cooperates with the filter container. When the filter container reaches the position of the brewing apparatus, the filter container is connected to the brewing apparatus through the first positioning device; and / or, The grinding device is equipped with a second positioning device that cooperates with the filter container. When the filter container reaches the position of the grinding device, the filter container is connected to the grinding device through the second positioning device.

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