Bean outlet powdering mechanism, bean grinder coffee maker, bean grinding method

Abstract

The application discloses a bean discharging and powdering mechanism, a bean grinding coffee machine and a bean grinding method, and belongs to the technical field of bean grinding and transportation. The bean discharging and powdering mechanism comprises a first driving element, a first transmission assembly, a first blocking element and a second blocking element. The first transmission assembly comprises a driving wheel, a first transmission wheel and a second transmission wheel. The driving wheel is installed on the output end of the first driving element. The first transmission wheel is installed on the first blocking element. The second transmission wheel is installed on the second blocking element. The upper and lower ends of the driving wheel are respectively used for cooperating with the first transmission wheel and the second transmission wheel. Under the action of the first driving element, the driving wheel has at least a first moving position and a second moving position. The lower end of the driving wheel cooperates with the first transmission wheel when the driving wheel is at the first moving position. The upper end of the driving wheel cooperates with the second transmission wheel when the driving wheel is at the second moving position. The driving wheel drives the first blocking element and the second blocking element to rotate at different positions.

Description

Technical Field

[0001] This invention relates to the technical field of bean grinding and transportation, and in particular to a bean feeding and powdering mechanism, a coffee grinder, and a bean grinding method. Background Technology

[0002] Existing coffee grinders are generally used to grind beans into powder. For example, when making coffee, coffee beans need to be fed into the grinder first. The top of the grinder has a bean hopper door to control the coffee beans entering the grinder, and the bottom of the grinder has a powder baffle to control the coffee powder discharge.

[0003] Currently, most coffee grinders on the market only control the opening and closing of the powder-dispensing baffle through the power source, resulting in residual coffee beans and grounds not being discharged from the grinder. Alternatively, some use the same power source to control both the powder-dispensing baffle and the bean hopper door, so the baffle closes simultaneously when the bean hopper door is closed. Since the grinder's process of breaking down coffee beans into powder has a certain lag, residual coffee grounds can remain in the grinder, causing blockages or fermentation and spoilage, affecting subsequent uses.

[0004] Furthermore, if the dust baffle and bean hopper door are closed simultaneously, the coffee grinder will be unable to produce a fixed amount of coffee powder from a fixed quantity of coffee beans. Using two separate power sources to control the dust baffle and bean hopper door would increase the cost of the coffee grinder; therefore, existing coffee grinders still have significant room for improvement. Summary of the Invention

[0005] The purpose of this invention is to improve the problem that existing methods of using the same power source to simultaneously control the dust baffle and the bean box door can lead to coffee powder residue and inability to dispense coffee powder in a measured way, and to provide a bean dispensing and discharging mechanism, a coffee grinder, and a grinding method.

[0006] The technical solutions for achieving the above objectives include the following:

[0007] A bean-feeding and powder-discharging mechanism includes a first driving member, a first transmission assembly, a first stop, and a second stop. The first transmission assembly includes a drive wheel, a first transmission wheel, and a second transmission wheel. The drive wheel is mounted on the output end of the first driving member, the first transmission wheel is mounted on the first stop, and the second transmission wheel is mounted on the second stop. The upper and lower ends of the drive wheel are respectively used to cooperate with the first transmission wheel and the second transmission wheel.

[0008] Under the action of the first driving member, the driving wheel has at least a first moving position and a second moving position. In the first moving position, the lower end of the driving wheel engages with the first transmission wheel; in the second moving position, the upper end of the driving wheel engages with the second transmission wheel.

[0009] In one embodiment, the drive wheel has a first rack and a second rack, the first rack and the second rack are respectively located at the upper and lower ends of the drive wheel, and the first rack and the second rack are staggered.

[0010] The first transmission wheel has a third rack that meshes with the first rack, and the second transmission wheel has a fourth rack that meshes with the second rack.

[0011] In one embodiment, the first transmission assembly further includes a supporting inner shell, the drive wheel is rotatably disposed on the supporting inner shell, and the supporting inner shell has a first limiting block and a second limiting block, the first limiting block and the second limiting block being distributed in the circumferential direction of the drive wheel;

[0012] In the circumferential direction of the drive wheel, the first rack is located between the first limiting block and the second limiting block, and the first and last ends of the first rack are respectively used to abut against the first limiting block and the second limiting block.

[0013] In one embodiment, a first trigger switch, a second trigger switch, and a third trigger switch are provided on the inner wall of the supporting inner shell, and the first trigger switch, the second trigger switch, and the third trigger switch are located in the circumferential direction of the drive wheel; in the circumferential direction of the drive wheel, the second trigger switch is located between the first trigger switch and the second trigger switch; the outer wall of the drive wheel has a toggle block, and the toggle block cooperates with the first trigger switch, the second trigger switch, and the third trigger switch respectively.

[0014] In one embodiment, the first stop includes a rotating shaft, a first movable baffle, and a fixed block. The rotating shaft is rotatably mounted on the supporting inner shell. The first end of the rotating shaft is fixedly connected to the first movable baffle, and the second end of the rotating shaft is fixedly connected to the first transmission wheel.

[0015] In one embodiment, the second stop includes a fixed baffle and at least a second movable baffle, the second movable baffle being movably disposed on the fixed baffle, a lower bean opening being provided between the second movable baffle and the fixed baffle, a pushing block being provided on the second transmission wheel, and the second movable baffle having a groove that cooperates with the pushing block; the fixed baffle has a first guide rail, and the second movable baffle has a first guide groove that cooperates with the first guide rail.

[0016] In one embodiment, the second stop further includes a third movable baffle, which is movably disposed on the fixed baffle. There are two push blocks, which respectively cooperate with the second movable baffle and the third movable baffle. The fixed baffle has a second guide rail, and the third movable baffle has a second guide groove that cooperates with the second guide rail.

[0017] The second movable baffle and the third movable baffle form a lower bean opening; the first guide rail and the second guide rail are arranged in parallel, and under the action of the second transmission wheel, the second movable baffle and the third movable baffle have a moving path that moves closer to each other or further away from each other.

[0018] In one embodiment, the second stop further includes two return springs, the second movable stop is connected to the fixed stop via one of the return springs, and the third movable stop is connected to the fixed stop via the other return spring.

[0019] The extension and retraction direction of the reset spring corresponds to the length direction of the first or second guide rail.

[0020] The present invention also proposes a coffee grinder, including a supporting body, a grinding mechanism, and a bean feeding and dispensing mechanism as described above. The grinding mechanism includes a second driving component, a bean grinding assembly, and a second transmission assembly. The bean grinding assembly is installed inside the supporting body. The second driving component is connected to the bean grinding assembly via the second transmission assembly. The bean grinding assembly has a tamping channel. The upper and lower ends of the tamping channel have a first feeding port and a second feeding port. The first stop and the second stop of the bean feeding and dispensing mechanism are respectively disposed at the first feeding port and the second feeding port. The first stop is used to open or close the first feeding port, and the second stop is used to open or close the second feeding port.

[0021] This invention also proposes a coffee grinding method based on a coffee grinder, comprising the following steps:

[0022] Step 1: The first driving component drives the drive wheel to rotate in the forward direction. The drive wheel moves to the first moving position and engages with the first transmission wheel, thereby driving the first stop to open the first feed port. The drive wheel moves to the second moving position and engages with the second transmission wheel, thereby driving the second stop to open the second feed port.

[0023] Step 2: The second drive unit drives the grinding assembly. Coffee beans enter the tamping channel from the second feed port. The grinding assembly grinds the coffee beans in the tamping channel, and the coffee beans are ground into coffee powder. The coffee powder is discharged from the first feed port.

[0024] Step 3: The first driving component drives the drive wheel to rotate in the opposite direction. The drive wheel moves to the second moving position and engages with the second transmission wheel, thereby driving the second stop to close the second feed port. The drive wheel moves to the first moving position and engages with the first transmission wheel, thereby driving the first stop to close the first feed port.

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

[0026] A first transmission wheel drives a first stop to rotate, and a second transmission wheel drives a second stop to rotate. The first stop opens or closes the powder outlet, and the second stop opens or closes the bean outlet. A first drive member drives a drive wheel to rotate, which has a first moving position and a second moving position. The upper and lower ends of the drive wheel engage with the first and second transmission wheels, respectively. When the drive wheel moves to the first moving position, its lower end engages with the first transmission wheel, which controls the first stop to open the powder outlet. When the drive wheel moves to the second moving position, the second transmission wheel controls the second stop to open the bean outlet. Therefore, in this bean dispensing mechanism, the first and second transmission wheels do not rotate completely simultaneously, preventing the first and second stops from opening or closing the powder outlet and bean outlet at the same time.

[0027] By having the upper and lower ends of the drive wheel engage with the first and second transmission wheels respectively, the drive wheel can drive the first and second stop components to rotate at different positions. This solves the problem of coffee powder residue and inability to dispense precise amounts of coffee powder when the same power source simultaneously controls the first and second stop components. Furthermore, the first and second stop components open or close the powder outlet and bean inlet sequentially. By designing a time difference in their relative rotation, after the bean inlet closes, the coffee beans are ground into powder and discharged from the powder outlet within that time difference, achieving precise grinding of the coffee beans. Attached Figure Description

[0028] The accompanying drawings illustrate specific examples of the technical solutions described in this invention and, together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this invention.

[0029] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0030] Figure 1 This is a schematic diagram of a coffee grinder according to an embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional view of a coffee grinder according to an embodiment of the present invention;

[0032] Figure 3 This is a cross-sectional view of a coffee grinder according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the interior of a coffee grinder according to one embodiment of the present invention. Figure 1 ;

[0034] Figure 5 This is a schematic diagram of the interior of a coffee grinder according to one embodiment of the present invention. Figure 2 ;

[0035] Figure 6 This is a schematic diagram of the bean flour extraction mechanism in one embodiment of the present invention. Figure 1 ;

[0036] Figure 7 This is a schematic diagram of the first transmission component in one embodiment of the present invention. Figure 1 ;

[0037] Figure 8 This is a schematic diagram of the first transmission component in one embodiment of the present invention. Figure 2 ;

[0038] Figure 9 This is a cross-sectional view of the first transmission component in one embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of the second stop in one embodiment of the present invention;

[0040] Figure 11 This is a top view of the second stop in one embodiment of the present invention;

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

[0042] 100. Coffee grinder;

[0043] 1. Support body; 11. Powder receiving position;

[0044] 2. Grinding mechanism; 210. Second drive component; 220. Grinding assembly; 230. Second transmission assembly; 240. Powder tamping channel;

[0045] 3. Bean feeding and powder dispensing mechanism; 310. First stop; 3111. Rotating shaft; 3112. First movable baffle; 3113. Fixed block; 320. First driving component; 3211. Output end; 330. First transmission assembly; 3310. Drive wheel; 3311. First rack; 3312. Second rack; 3313. First trigger switch; 3314. Second trigger switch; 3315. Third trigger switch; 3316. Actuating block;

[0046] 3320, First transmission wheel; 3321, Third rack; 3330, Second transmission wheel; 3331, Fourth rack; 3332, Push block; 340, Support inner shell; 3411, First limiting block; 3412, Second limiting block;

[0047] 350. Second stop; 3511. Second movable baffle; 3512. Third movable baffle; 3513. Return spring; 3514. Fixed baffle; 3515. First guide rail; 3516. Second guide rail. Detailed Implementation

[0048] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0049] 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.

[0050] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0051] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0052] like Figures 1 to 11 As shown, the bean powder dispensing mechanism 3 includes a first driving member 320, a first transmission assembly 330, a first stop 310, and a second stop 350. The first transmission assembly 330 includes a drive wheel 3310, a first transmission wheel 3320, and a second transmission wheel 3330. The drive wheel 3310 is mounted on the output end 3211 of the first driving member 320, the first transmission wheel 3320 is mounted on the first stop 310, and the second transmission wheel 3330 is mounted on the second stop 350. The upper and lower ends of the drive wheel 3310 are respectively used to cooperate with the first transmission wheel 3320 and the second transmission wheel 3330. Under the action of the first driving member 320, the drive wheel 3310 has at least a first moving position and a second moving position. In the first moving position, the lower end of the drive wheel 3310 cooperates with the first transmission wheel 3320. In the second moving position, the upper end of the drive wheel 3310 cooperates with the second transmission wheel 3330.

[0053] Specifically, the first transmission wheel 3320 drives the first stop 310 to rotate, and the second transmission wheel 3330 drives the second stop 350 to rotate. The first stop 310 is used to open or close the powder outlet, and the second stop 350 is used to open or close the bean outlet. The first driving member 320 drives the drive wheel 3310 to rotate. The drive wheel 3310 has a first moving position and a second moving position when rotating, and the upper and lower ends of the drive wheel 3310 are respectively engaged with the first transmission wheel 3320 and the second transmission wheel 3320. When the drive wheel 3310 moves to the first moving position, the lower end of the drive wheel 3310 is engaged with the first transmission wheel 3320, and the first transmission wheel 3320 controls the first stop 310 to open the powder outlet. When the drive wheel 3310 moves to the second moving position, the second transmission wheel 3330 controls the second stop 350 to open the bean outlet. Therefore, in the bean feeding and powder dispensing mechanism 3, the first transmission wheel 3320 and the second transmission wheel 3330 do not rotate completely simultaneously when they rotate, so that the first stop 310 and the second stop 350 cannot open or close the powder outlet and the bean feeding outlet at the same time.

[0054] Furthermore, under the action of the first driving member 320, the drive wheel 3310 also has a third moving position, in which both the powder outlet and the bean outlet are fully open. The drive wheel 3310 opens the powder outlet and the bean outlet sequentially by rotating clockwise, and it can also close them by rotating counterclockwise. When the drive wheel 3310 rotates counterclockwise, it moves from the third moving position to the second moving position, and closes the bean outlet via the second transmission wheel. At this time, the grinding mechanism 2 continues to grind coffee beans, the powder outlet is not closed, and coffee powder continues to be discharged from the powder outlet. When the drive wheel 3310 continues to rotate counterclockwise, it moves from the second moving position to the first moving position, and closes the powder outlet via the first transmission wheel 3320.

[0055] Furthermore, by having the upper and lower ends of the drive wheel 3310 engage with the first transmission wheel 3320 and the second transmission wheel 3330 respectively, the drive wheel 3310 drives the first stop 310 and the second stop 350 to rotate at different positions. This solves the problem of coffee powder residue and inability to dispense powder quantitatively when the same power source simultaneously controls the first stop 310 and the second stop 350. Additionally, the first stop 310 and the second stop 350 open or close the powder outlet and bean inlet sequentially. By designing a time difference in their relative rotation, after the bean inlet closes, the coffee beans are ground into powder and discharged from the powder outlet within this time difference, achieving quantitative grinding in the coffee grinder 100. In this embodiment, quantitative grinding refers to the correspondence between the amount of beans dispensed from the bean hopper and the amount of powder dispensed.

[0056] To further enable the same power source to control the first stop 310 and the second stop 350 respectively, preferably, the drive wheel 3310 has a first rack 3311 and a second rack 3312, the first rack 3311 and the second rack 3312 are respectively located at the upper and lower ends of the drive wheel 3310, and the first rack 3311 and the second rack 3312 are staggered; the first transmission wheel 3320 has a third rack 3321 that meshes with the first rack 3311, and the second transmission wheel 3330 has a fourth rack 3331 that meshes with the second rack 3312.

[0057] Specifically, the first rack 3311 is used to mesh with the third rack 3321 of the first transmission wheel, and the second rack 3312 is used to mesh with the fourth rack 3331 of the second transmission wheel. The first rack 3311 and the second rack 3312 are located at the upper and lower ends of the driving wheel 3310, respectively. Therefore, when the driving wheel 3310 rotates, it can simultaneously drive the first rack 3311 and the second rack 3312 to rotate. Since the first rack 3311 and the second rack 3312 are staggered, when the drive wheel 3310 moves to the first moving position, the first rack 3311 can mesh with the first transmission wheel 3320 for transmission. When the drive wheel 3310 moves to the second moving position, the second rack 3312 meshes with the second transmission wheel 3330 for transmission. This enables the drive wheel 3310 to drive the first transmission wheel 3320 and the second transmission wheel 3330 to rotate respectively when rotating. The first transmission wheel 3320 and the second transmission wheel 3330 rotate at different times, which further enables the control of the first stop 310 and the second stop 320 respectively.

[0058] To limit the rotation angle of the drive wheel 3310 and facilitate the switching of the drive wheel 3310 from clockwise to counterclockwise rotation, preferably, the first transmission assembly 330 further includes a supporting inner shell 340. The drive wheel 3310 is rotatably disposed on the supporting inner shell 340. The supporting inner shell 340 has a first limiting block 3411 and a second limiting block 3412, which are distributed in the circumferential direction of the drive wheel 3310. In the circumferential direction of the drive wheel 3310, the first rack 3311 is located between the first limiting block 3411 and the second limiting block 3412, and the first and last ends of the first rack 3311 are respectively used to abut against the first limiting block 3411 and the second limiting block 3412.

[0059] Specifically, the supporting inner shell 340 has a first limiting block 3411 and a second limiting block 3412. The first limiting block 3411 and the second limiting block 3412 are distributed in the circumferential direction of the drive wheel 3310. The first limiting block 3411 is relative to the starting position of the drive wheel 3310, and the second limiting block 3412 is equivalent to the ending position of the drive wheel 3310. The position of the first limiting block 3411 corresponds to the first moving position, and the position of the second limiting block 3412 corresponds to the third moving position. The drive wheel 3310 rotates clockwise. After the drive wheel 3310 moves from the first moving position to the third moving position, the first rack 3311 abuts against the second limiting block 3412, and the drive wheel 3310 cannot rotate. The first driving member 320 senses that it cannot continue to rotate and will rotate counterclockwise, and rotate from the third moving position to the first moving position. The first rack 3311 abuts against the first limiting block 3411. Therefore, by setting the first limiting block 3411 and the second limiting block 3412 on the supporting inner shell 340, the rotation angle of the drive wheel 3310 is limited, and it is convenient for the drive wheel 3310 to switch from clockwise to counterclockwise rotation.

[0060] To determine the rotational position of the drive wheel 3310, preferably, a first trigger switch 3313, a second trigger switch 3314, and a third trigger switch 3315 are provided on the inner wall of the supporting inner shell 340. The first trigger switch 3313, the second trigger switch 3314, and the third trigger switch 3315 are located in the circumferential direction of the drive wheel 3310. In the circumferential direction of the drive wheel 3310, the second trigger switch 3314 is located between the first trigger switch 3313 and the second trigger switch 3315. The outer wall of the drive wheel 3310 has a toggle block 3316, which cooperates with the first trigger switch 3313, the second trigger switch 3314, and the third trigger switch 3315 respectively.

[0061] Specifically, the first trigger switch 3313, the second trigger switch 3314, and the third trigger switch 3315 correspond to the first moving position, the second moving position, and the third moving position of the drive wheel 3310, respectively. The drive wheel 3310 has a toggle block 3316. When the toggle block 3316 rotates with the drive wheel 3310 to the first moving position, the second moving position, and the third moving position, the toggle block 3316 triggers the first trigger switch 3313, the second trigger switch 3314, and the third trigger switch 3315, respectively, thereby determining the rotation position of the drive wheel 3310.

[0062] In some other embodiments, the first stop 310 includes a rotating shaft 3111, a first movable baffle 3112, and a fixing block 3113. The rotating shaft 3111 is rotatably mounted on the supporting inner shell 340. The first end of the rotating shaft 3111 is fixedly connected to the first movable baffle 3112, and the second end of the rotating shaft 3111 is fixedly connected to the first transmission wheel 3320.

[0063] Specifically, the inner support shell 340 is used to support the rotating shaft 3111 and improve the stability of the rotating shaft 3111 when rotating. The upper and lower ends of the rotating shaft 3111 are fixedly connected to the first transmission wheel 3320 and the fixed block 3113, respectively. When the first transmission wheel 3320 rotates, it drives the first movable baffle 3112 to rotate through the rotating shaft 3111, thereby opening or closing the powder outlet.

[0064] In some other embodiments, the second stop 350 includes a fixed baffle 3514 and at least a second movable baffle 3511. The second movable baffle 3511 is movably disposed on the fixed baffle 3514, and a lower bean opening is provided between the second movable baffle 3511 and the fixed baffle 3514. The second transmission wheel 3330 has a push block 3332, and the second movable baffle 3511 has a groove that cooperates with the push block 3332. The fixed baffle 3314 has a first guide rail 3515, and the second movable baffle 3511 has a first guide groove that cooperates with the first guide rail 3515.

[0065] Specifically, a lower bean opening is provided between the second movable baffle 3511 and the fixed baffle 3514. The second movable baffle 3511 is used to slide with the fixed baffle 3514, and the lower bean opening is opened or closed by moving the second movable baffle 3511. When the second transmission wheel 3330 rotates, the push block 3332 on the second transmission wheel 3330 pushes the second movable baffle 3511 to move. The second movable baffle 3511 slides with the first guide rail 3515 through the first guide groove. The first guide rail 3515 restricts the movement direction of the second movable baffle 3511, and the first guide rail 3515 can change the circumferential force of the push block 3332 into a force that drives the second movable baffle 3511 to move linearly.

[0066] Preferably, the second stop 350 further includes a third movable baffle 3512, which is movably disposed on the fixed baffle 3514. Two push blocks 3332 are provided, each cooperating with the second movable baffle 3511 and the third movable baffle 3512 respectively. The fixed baffle 3514 has a second guide rail 3516, and the third movable baffle 3512 has a second guide groove that cooperates with the second guide rail 3516. A lower opening is formed between the second movable baffle 3511 and the third movable baffle 3512. The first guide rail 3515 and the second guide rail 3516 are arranged parallel to each other. Under the action of the second transmission wheel 3330, the second movable baffle 3511 and the third movable baffle 3512 have a moving path that allows them to move closer together or further apart.

[0067] Specifically, two push blocks 3332 are set on the second transmission wheel 3330. The two push blocks 3332 act on the second movable baffle 3511 and the third movable baffle 3512 respectively. The second movable baffle 3511 and the third movable baffle 3512 slide through the first guide rail 3515 and the second guide rail 3516. The second movable baffle 3511 and the third movable baffle 3512 have a moving path that moves closer to each other or further away from each other. When the second movable baffle 3511 and the third movable baffle 3512 move closer to each other, the lower bean opening is closed. When the second movable baffle 3511 and the third movable baffle 3512 move further away from each other, the lower bean opening is opened.

[0068] Preferably, the second stop 350 also has two return springs 3513. The second movable stop 3511 is connected to the fixed stop 3514 through one of the return springs 3513, and the third movable stop 3512 is connected to the fixed stop 3514 through the other return spring 3513. The extension and retraction direction of the return spring 3513 corresponds to the length direction of the first guide rail 3515 or the second guide rail 3516.

[0069] Specifically, when the second drive wheel 3330 drives the push block 3332 to move the second movable baffle 3511 and the third movable baffle 3512 away from each other, the bean outlet opens, and the return spring 3513 is stretched. When the force of the second drive wheel 3330 disappears, the reaction force of the return spring 3330 can reset the second movable baffle 3511 and the third movable baffle 3512, thus automatically closing the bean outlet. The second movable baffle 3511 and the third movable baffle 3512 can be installed on the housing, which can be flexibly assembled. When the housing is disassembled from the bean dispensing mechanism 3, the second movable baffle 3511 and the third movable baffle 3512 ensure that the bean outlet is always closed, preventing coffee beans from spilling out.

[0070] The present invention also proposes a coffee grinder 100, including a support body 1, a grinding mechanism 2, and a bean feeding and powder dispensing mechanism 3 as described above. The grinding mechanism 2 includes a second driving member 210, a bean grinding assembly 220, and a second transmission assembly 230. The bean grinding assembly 220 is installed inside the support body 1. The second driving member 210 is connected to the bean grinding assembly 220 through the second transmission assembly 230. The bean grinding assembly 220 has a powder pressing channel 240. The upper and lower ends of the powder pressing channel 240 have a first feeding port and a second feeding port. The first stop 310 and the second stop 350 of the bean feeding and powder dispensing mechanism 3 are respectively disposed at the first feeding port and the second feeding port. The first stop 310 is used to open or close the first feeding port, and the second stop 350 is used to open or close the second feeding port.

[0071] Specifically, the grinding mechanism 2 and the bean feeding and powder dispensing mechanism 3 are both installed on the support body 1. The bean feeding and powder dispensing mechanism 3 is used to cooperate with the grinding mechanism 2. The support body 1 has a powder receiving position 11. The second drive component 210 outputs power and transmits the power through the second transmission component 230, so that the grinding component 220 grinds coffee beans. The grinding component 220 has a powder pressing channel 240. The upper and lower ends of the powder pressing channel 240 have a first feeding port and a second feeding port. The first feeding port corresponds to the bean feeding port and the second feeding port corresponds to the powder feeding port. The first feeding port is opened or closed by the first stop 310 and the second feeding port is opened or closed by the second stop 350 to complete the quantitative powder pressing operation.

[0072] The present invention also proposes a coffee grinding method based on a coffee grinder 100, comprising the following steps:

[0073] Step 1: The first driving component 320 drives the drive wheel 3310 to rotate in the forward direction. The drive wheel 3310 moves to the first moving position and engages with the first transmission wheel 3320, thereby driving the first stop 310 to open the first feed port. The drive wheel 3310 moves to the second moving position and engages with the second transmission wheel 3330, thereby driving the second stop 350 to open the second feed port.

[0074] Step 2: The second driving component 210 drives the grinding assembly 220. Coffee beans enter the tamping channel 240 from the second feeding port. The grinding assembly 220 grinds the coffee beans in the tamping channel 240. The coffee beans are ground into coffee powder, which is discharged from the first feeding port.

[0075] Step 3: The first driving component 320 drives the driving wheel 3310 to rotate in the opposite direction. The driving wheel 3310 moves to the second moving position and cooperates with the second transmission wheel 3330, and drives the second stop 350 to close the second feed port. The driving wheel 3310 moves to the first moving position and cooperates with the first transmission wheel 3320, and drives the first stop 310 to close the first feed port.

[0076] Specifically, by activating the first driving component 320, the first driving component 320 drives the drive wheel 3310 to rotate. The upper and lower ends of the drive wheel 3310 cooperate with the first transmission wheel 3320 and the second transmission wheel 3330 respectively, thereby automatically opening or closing the first and second feed ports. Moreover, this grinding method is simple. It only requires setting the movement time difference between the first stop 310 and the second stop 350 in advance to close the second feed port in advance, and ensure that the coffee powder in the grinding assembly 220 is completely discharged before closing the first feed port.

[0077] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0078] The purpose of the above embodiments is to reproduce and derive the technical solution of the present invention by way of example, and to fully describe the technical solution, purpose and effect of the present invention. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosure of the present invention, and not to limit the scope of protection of the present invention.

[0079] The above embodiments are not an exhaustive list based on the present invention, and there may be many 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 bean-feeding and powder-discharging mechanism, characterized in that, include: The system comprises a first driving component, a first transmission assembly, a first stop component, and a second stop component. The first transmission assembly includes a driving wheel, a first transmission wheel, and a second transmission wheel. The driving wheel is mounted on the output end of the first driving component, the first transmission wheel is mounted on the first stop component, and the second transmission wheel is mounted on the second stop component. The upper and lower ends of the driving wheel are respectively used to cooperate with the first transmission wheel and the second transmission wheel. Under the action of the first driving member, the driving wheel has at least a first moving position and a second moving position. In the first moving position, the lower end of the driving wheel engages with the first transmission wheel; in the second moving position, the upper end of the driving wheel engages with the second transmission wheel.

2. The bean feeding and powder dispensing mechanism as described in claim 1, characterized in that, The drive wheel has a first rack and a second rack, the first rack and the second rack are located at the upper and lower ends of the drive wheel respectively, and the first rack and the second rack are staggered. The first transmission wheel has a third rack that meshes with the first rack, and the second transmission wheel has a fourth rack that meshes with the second rack.

3. The bean-feeding and powder-discharging mechanism as described in claim 2, characterized in that, The first transmission assembly further includes a supporting inner shell, on which the drive wheel is rotatably mounted. The supporting inner shell has a first limiting block and a second limiting block, which are distributed in the circumferential direction of the drive wheel. In the circumferential direction of the drive wheel, the first rack is located between the first limiting block and the second limiting block, and the first and last ends of the first rack are respectively used to abut against the first limiting block and the second limiting block.

4. The bean feeding and powder dispensing mechanism as described in claim 3, characterized in that, The inner wall of the supporting inner shell is provided with a first trigger switch, a second trigger switch, and a third trigger switch, which are located in the circumferential direction of the drive wheel. In the circumferential direction of the drive wheel, the second trigger switch is located between the first trigger switch and the third trigger switch. The outer wall of the drive wheel has a toggle block, which cooperates with the first trigger switch, the second trigger switch, and the third trigger switch respectively.

5. The bean feeding and powder discharging mechanism as described in any one of claims 1 to 4, characterized in that, The first stop includes a rotating shaft, a first movable baffle, and a fixed block. The rotating shaft is rotatably mounted on the supporting inner shell. The first end of the rotating shaft is fixedly connected to the first movable baffle, and the second end of the rotating shaft is fixedly connected to the first transmission wheel.

6. The bean feeding and powder discharging mechanism as described in any one of claims 1 to 4, characterized in that, The second stop includes a fixed baffle and at least a second movable baffle. The second movable baffle is movably disposed on the fixed baffle. A lower bean opening is provided between the second movable baffle and the fixed baffle. A pushing block is provided on the second transmission wheel. The second movable baffle has a groove that cooperates with the pushing block. A first guide rail is provided on the fixed baffle. The second movable baffle has a first guide groove that cooperates with the first guide rail.

7. The bean feeding and powder dispensing mechanism as described in claim 6, characterized in that, The second stop also includes a third movable baffle, which is movably disposed on the fixed baffle. There are two push blocks, which respectively cooperate with the second movable baffle and the third movable baffle. The fixed baffle has a second guide rail, and the third movable baffle has a second guide groove that cooperates with the second guide rail. The second movable baffle and the third movable baffle form a lower bean opening; the first guide rail and the second guide rail are arranged in parallel, and under the action of the second transmission wheel, the second movable baffle and the third movable baffle have a moving path that moves closer to each other or further away from each other.

8. The bean feeding and powder dispensing mechanism as described in claim 7, characterized in that, The second stop also has two return springs. The second movable stop is connected to the fixed stop via one of the return springs, and the third movable stop is connected to the fixed stop via the other return spring. The extension and retraction direction of the reset spring corresponds to the length direction of the first or second guide rail.

9. A coffee grinder, characterized in that, The device includes a support body, a grinding mechanism, and a bean feeding and powder dispensing mechanism as described in claim 1. The grinding mechanism includes a second driving component, a bean grinding assembly, and a second transmission assembly. The bean grinding assembly is installed inside the support body. The second driving component is connected to the bean grinding assembly via the second transmission assembly. The bean grinding assembly has a powder pressing channel. The upper and lower ends of the powder pressing channel have a first feeding port and a second feeding port. The first stop and the second stop of the bean feeding and powder dispensing mechanism are respectively disposed at the first feeding port and the second feeding port. The first stop is used to open or close the first feeding port, and the second stop is used to open or close the second feeding port.

10. A coffee grinding method based on the coffee grinder of claim 9, characterized in that, Includes the following steps: The first driving component drives the drive wheel to rotate in the forward direction. The drive wheel moves to the first moving position and engages with the first transmission wheel, thereby driving the first stop to open the first feed port. The drive wheel moves to the second moving position and engages with the second transmission wheel, thereby driving the second stop to open the second feed port. The second drive unit drives the grinding assembly. Coffee beans enter the tamping channel from the second feed port. The grinding assembly grinds the coffee beans in the tamping channel to form coffee powder, which is then discharged from the first feed port. The first driving member drives the drive wheel to rotate in the opposite direction. The drive wheel moves to the second moving position and engages with the second transmission wheel, thereby driving the second stop to close the second feed port. The drive wheel moves to the first moving position and engages with the first transmission wheel, thereby driving the first stop to close the first feed port.

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