Automatic powder distribution device, control method of automatic powder distribution device and flour mill

Abstract

The invention provides an automatic powder distribution device, a control method of the automatic powder distribution device and a flour mill, the flour mill comprises the automatic powder distribution device, and the automatic powder distribution device comprises a powder distributor, a positioning mechanism, a first sliding rail, a first driving motor, a second driving motor and a control circuit board. The positioning mechanism is located below the powder distributor, the positioning mechanism is provided with a mounting cavity, the mounting cavity is used for containing an extraction container, and the positioning mechanism is in sliding connection with the first sliding rail. And the powder is limited in the powder distributor, so that the powder is prevented from drifting around.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage making equipment, and in particular to an automatic powder distributing device, a control method of the automatic powder distributing device, and a grinding machine. Background Art

[0002] An existing automatic powder pressing type coffee bean grinder includes a bean grinding mechanism, a powder receiving mechanism and a powder pressing mechanism. The bean grinding mechanism includes a bean grinding motor assembly and a powder outlet channel. The bean grinding motor assembly utilizes a motor to drive a grinder to grind coffee beans into powder. The powder outlet channel is connected to the bean grinding chamber of the bean grinding motor assembly. The powder receiving mechanism is located below the discharge end of the powder outlet channel. The powder receiving mechanism includes a powder receiving funnel. The powder pressing mechanism includes a plunger barrel, a powder pressing plunger, a lifting motor and a rotating motor. The lifting motor drives the plunger barrel to lift and move above the powder receiving funnel. The discharge end of the powder outlet channel is located on the lifting path of the plunger barrel. The powder pressing plunger is rotatably mounted at the bottom of the plunger barrel. During operation, coffee beans are put into the bean grinding motor assembly, which grinds the coffee beans into powder. The coffee powder flows downward through the powder discharge channel, passes through the discharge end and falls into the powder receiving funnel. After the grinding is completed, the lifting motor is started to drive the plunger barrel to descend. The plunger barrel blocks the discharge end of the powder discharge channel, and the powder pressing plunger descends with the plunger barrel. The powder pressing plunger extends into the powder receiving funnel to compact the coffee powder in the powder receiving funnel downward. At the same time, the rotating motor is started, the powder pressing plunger rotates, and the bottom of the powder pressing plunger is used to scrape the upper end surface of the coffee powder pile flat. However, this structure requires a mechanism that allows the plunger barrel to move up and down and a mechanism that allows the powder pressing plunger to rotate relative to the plunger barrel, which not only makes the design of the powder pressing mechanism very complicated. In addition, the distance between the discharge end of the powder discharge channel and the powder receiving funnel is relatively large. Based on the limitations of this structure, it is impossible to design an effective powder guiding channel to guide the powder from the discharge end to the powder receiving funnel. In the process of the coffee powder falling into the powder receiving funnel, the powder is scattered everywhere and adheres to other components and even the outer surface of the powder receiving funnel, affecting the user experience. Summary of the invention

[0003] In order to solve the above-mentioned prior art problems, the present invention provides an automatic powder distributing device, including a powder distributing device, a positioning mechanism, a first sliding track, a first driving motor, a second driving motor and a control circuit board;

[0004] A powder outlet is provided at the bottom of the powder distributor, a powder lowering channel is provided in the powder distributor, the powder lowering channel is connected to the powder outlet, and the powder distributor is used to introduce the powder into the extraction container and flatten and compact the powder in the extraction container;

[0005] The positioning mechanism is located below the powder distributor, and is provided with a mounting cavity, and the mounting cavity is used to place the extraction container. The positioning mechanism has a first position and a second position relative to the powder distributor. When the positioning mechanism is located at the first position, the positioning mechanism is away from the powder distributor, so that the extraction container can be taken from the positioning mechanism. When the positioning mechanism is located at the second position, the positioning mechanism is arranged close to the powder distributor, so that the powder distributor can be extended into the extraction container.

[0006] The first sliding rail is arranged along the up and down directions, the positioning mechanism is slidably connected to the first sliding rail, the output shaft of the first driving motor is relatively fixedly connected to the positioning mechanism, the first driving motor drives the positioning mechanism to move along the first sliding rail between a first position and a second position, the second driving motor is linked with the powder distributor to drive the powder distributor to rotate, and the first driving motor and the second driving motor are both electrically connected to the control circuit board.

[0007] As an improvement of the automatic powder spreading device of the present invention, it also includes a first sensor, a second sensor and a third sensor, the first sensor, the second sensor and the third sensor are all electrically connected to the control circuit board, the first sensor is arranged in the installation cavity, the second sensor is fixed relative to the positioning mechanism, the second sensor is used to identify that the positioning mechanism is in the second position, the third sensor is fixed relative to the positioning mechanism, and the third sensor is used to identify that the positioning mechanism is in the first position.

[0008] As an improvement of the automatic powder spreading device of the present invention, it also includes a first limiting portion, which is fixed relative to the first sliding track. When the positioning mechanism is located at the second position, the sensing portion of the second sensor abuts against the first limiting portion. The positioning mechanism includes a fixed seat and a first fixed block. The mounting cavity is provided on the fixed seat. The fixed seat can slide along the first sliding track. The first fixed block is fixed to the fixed seat. The second sensor is installed on the first fixed block. The sensing portion of the second sensor is provided on the side of the first fixed block close to the first limiting portion.

[0009] As an improvement to the automatic powder spreading device of the present invention, the fixed seat includes two sliding parts, and the two sliding parts are respectively located on opposite sides of the installation cavity. Each sliding part has a sliding groove passing through it along the sliding direction of the positioning mechanism. The first sliding track includes two sliding rods corresponding to the two sliding parts one by one, and the sliding groove is sleeved on the sliding rods.

[0010] As an improvement to the automatic powder spreading device of the present invention, each of the sliding parts includes a first sliding block and a second sliding block arranged at intervals along the sliding direction of the positioning mechanism, and the sliding groove passes through the first sliding block and the second sliding block.

[0011] As an improvement of the automatic powder spreading device of the present invention, it also includes a second limiting portion, which is relatively fixed to the first sliding track. When the positioning mechanism is located at the first position, the sensing portion of the second sensor abuts against the second limiting portion. The positioning mechanism also includes a second fixed block and a connecting block. The mounting cavity is provided on the fixed seat, and the fixed seat slides along the first sliding track. The connecting block is installed on one side of the fixed seat, and the connecting block is connected to the output shaft of the first driving motor. The second fixed block is provided on the connecting block, and the third sensor is installed on the second fixed block. The sensing portion of the third sensor is provided on the side of the second fixed block close to the second limiting portion.

[0012] As an improvement of the automatic powder spreading device of the present invention, the powder spreading device includes a side wall and a bottom wall connected to the lower end of the side wall, the side wall and the bottom wall are arranged to form an accommodating space, the accommodating space includes a powder chamber and the lower powder channel, the upper side of the powder chamber is open, the bottom wall is provided with a powder outlet and a powder scraping portion, the lower powder channel extends downward from the powder chamber to the powder outlet, the powder outlet is located between the center of the bottom wall and the edge of the bottom wall, the powder scraping portion extends from the center of the bottom wall to the edge of the bottom wall, and the powder scraping portion protrudes downward from the powder outlet, and when the powder spreading device is working, the second driving motor drives the powder spreading device to rotate along a rotating axis passing through the center of the bottom wall and arranged in the up and down directions.

[0013] As an improvement of the automatic powder spreading device of the present invention, the bottom wall is provided with a planar pressed powder surface, the pressed powder surface is distributed from the center of the bottom wall to the edge of the bottom wall, the pressed powder surface is inclined upward from the side close to the powder outlet toward the direction away from the powder outlet, and the powder scraping portion is arranged on the side of the pressed powder surface close to the powder outlet.

[0014] As an improvement to the automatic powder spreading device of the present invention, the bottom wall is provided with a platform, the platform is arranged offset from the center of the bottom wall and extends to the edge of the bottom wall, the platform is recessed upward into the powder scraping portion, the powder outlet is opened on the platform, a receiving groove is formed by being recessed upward from the platform, and the receiving groove extends to the powder outlet.

[0015] As an improvement to the automatic powder spreading device of the present invention, the bottom wall is provided with a planar pressed powder surface, and the pressed powder surface is distributed from the center of the bottom wall to the edge of the bottom wall. At least two powder outlets are provided, and each of the powder outlets corresponds to a powder scraping portion. A pressed powder surface is provided between any two adjacent powder outlets, and the pressed powder surface is formed by extending obliquely upward from the powder scraping portion corresponding to any one of the powder outlets toward the other powder outlet.

[0016] As an improvement of the automatic powder distribution device of the present invention, it also includes a fixing part and a cover body, the cover body is arranged on the top of the powder chamber and is rotatably connected to the powder distribution device, the cover body is provided with a powder inlet, the fixing part is used to fix the powder distribution device on the grinding mill, the fixing part is sleeved outside the powder distribution device and is rotatably connected to the powder distribution device, the cover body and the fixing part are tightly connected, the outer periphery of the powder distribution device is sleeved with a transmission part, the outer periphery of the transmission part is provided with gear teeth, the gear teeth are engaged with the driving gear of the second driving motor to drive the powder distribution device to rotate.

[0017] As an improvement of the automatic powder distributing device of the present invention, the distributor includes a boss, which is arranged outside the side wall, and the top surface of the boss is provided with a first mating surface, and the first mating surface is recessed downward with a first roller accommodating groove, and the cover body includes a plate cover and a fixing ring, the plate cover is arranged on the upper side of the powder chamber, the powder inlet is arranged on the plate cover, and the fixing ring is sleeved outside the side wall, the fixing ring is relatively fixed to the plate cover, and the bottom surface of the fixing ring is provided with a second mating surface located above the first mating surface, and there is a gap between the first mating surface and the second mating surface, the second mating surface is recessed upward with a second roller accommodating groove, the second roller accommodating groove is aligned with the first roller accommodating groove up and down, and a plurality of first rollers are clamped between the first roller accommodating groove and the second roller accommodating groove and distributed along the outer circumference of the side wall.

[0018] As an improvement of the automatic powder distributing device of the present invention, the first roller accommodating groove and the second roller accommodating groove are both annular grooves and are arranged around the outer periphery of the side wall; or,

[0019] The first roller accommodating groove is composed of a plurality of first pit holes, the plurality of first pit holes correspond to the first rollers one by one, the plurality of first pit holes are distributed at intervals on the outer periphery of the side wall, each of the first rollers is arranged in the corresponding first pit hole, and the second roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall; or,

[0020] The second roller accommodating groove is composed of a plurality of first pit holes, and the plurality of first pit holes correspond one-to-one to the first rollers. The plurality of first pit holes are distributed at intervals on the outer periphery of the side wall, and each first roller is arranged in the corresponding first pit hole. The first roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall.

[0021] As an improvement of the automatic powder distributing device of the present invention, the distributor includes a boss, which is arranged outside the side wall, and the bottom surface of the boss is provided with a third mating surface, and the third mating surface is recessed upward with a third roller accommodating groove, and the fixing member includes a first support platform, which is arranged outside the side wall, and the first support platform is provided with a fourth mating surface, and the fourth mating surface is located below the third mating surface and there is a gap between the third mating surface and the fourth mating surface, and the fourth mating surface is recessed downward with a fourth roller accommodating groove, and the fourth roller accommodating groove is aligned with the third roller accommodating groove up and down, and a plurality of second rollers are clamped between the third roller accommodating groove and the fourth roller accommodating groove and distributed along the outer circumference of the side wall.

[0022] As an improvement of the automatic powder distributing device of the present invention, the third roller accommodating groove and the fourth roller accommodating groove are both annular grooves and are arranged around the outer periphery of the side wall; or,

[0023] The third roller accommodating groove is composed of a plurality of second pit holes, the plurality of second pit holes correspond to the second rollers one by one, the plurality of second pit holes are distributed at intervals on the outer periphery of the side wall, each second roller is arranged in the corresponding second pit hole, and the fourth roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall; or,

[0024] The fourth roller accommodating groove is composed of a plurality of second pit holes, and the plurality of second pit holes correspond one-to-one to the second rollers. The plurality of second pit holes are distributed at intervals on the outer periphery of the side wall, and each second roller is arranged in the corresponding second pit hole. The third roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall.

[0025] As an improvement of the automatic powder distributing device of the present invention, a vibration mechanism is further included. The vibration mechanism is arranged on the fixing member, and a vibration contact portion of the vibration mechanism elastically abuts against the powder distributing device.

[0026] In order to solve the above-mentioned problems in the prior art, the present invention provides a grinding machine, comprising a grinding module and the automatic powder distribution device according to any one of claims 1-16, wherein the grinding module is located above the powder distributor, and the grinding module is connected to the lower powder channel.

[0027] As an improvement of the automatic powder distribution device of the present invention, it also includes a powder feeding channel, and the powder feeding channel is connected to the powder grinding module and the powder lowering channel.

[0028] As an improvement of the automatic powder distribution device of the present invention, a powder delivery port is provided below the grinding module, the powder delivery port is aligned with the powder distributor up and down, and the powder delivery port is communicated with the powder lowering channel.

[0029] As an improvement of the automatic powder distributing device of the present invention, the powder distributing device is provided with an antistatic device.

[0030] In order to solve the above-mentioned prior art problems, the present invention provides a control method for an automatic powder distribution device, which is applied to a grinding mill and comprises the following steps:

[0031] In the initial state of the mill, the positioning mechanism is set at the first position, and the extraction container is placed on the positioning mechanism. When the extraction container is ensured to be in place, the control circuit board controls the first drive motor to work, wherein the first drive motor drives the positioning mechanism to move from the first position to the second position along the first sliding track;

[0032] When ensuring that the positioning mechanism reaches the second position, the control circuit board controls the first drive motor to stop working and controls the second drive motor to work, and the second drive motor drives the powder distributor to work, and the powder distributor evenly distributes the powder in the extraction container and compacts it;

[0033] When ensuring that the powder distributor completes the powder distribution work, the control circuit board controls the second drive motor to stop working, and controls the first drive motor to drive the positioning mechanism to move from the second position to the first position along the first sliding track;

[0034] When the positioning mechanism reaches the first position, the control circuit board controls the first driving motor to stop working.

[0035] As an improvement of the automatic powder distributing device of the present invention, under the condition that the extraction container is placed in place, controlling the control circuit board to control the first driving motor to work includes:

[0036] The extraction container is placed and positioned on the positioning mechanism and the first sensor is triggered. The first sensor sends a first detection signal. The control circuit board determines that the extraction container has been placed in place according to the first detection signal. The control circuit board controls the first drive motor to work according to the first detection signal.

[0037] As an improvement of the automatic powder distributing device of the present invention, when ensuring that the positioning mechanism reaches the second position, the control circuit board controls the first driving motor to stop working, including:

[0038] During the movement of the positioning mechanism, the first limit part triggers the second sensor, the second sensor sends a second detection signal, the control circuit board determines that the positioning mechanism has reached the second position according to the second detection signal, and the control circuit board controls the first drive motor to stop working according to the second detection signal.

[0039] As an improvement of the automatic powder distributing device of the present invention, the powder distributing device distributes the powder in the extraction container including:

[0040] The control circuit board receives the second detection signal and simultaneously controls the operation of the second drive motor and starts calculating the first compensation time. When the first compensation time is reached, the control circuit board controls the operation of the grinding module, and the grinding module grinds the beverage raw materials placed therein and transfers the ground powder to the powder distributor, wherein the first compensation time refers to the time difference between the time node when the second drive motor starts working and the time node when the grinding module starts working.

[0041] As an improvement of the automatic powder distributing device of the present invention, under the condition that the powder distributing device completes the powder distributing work, the control circuit board controls the second driving motor to stop working, including:

[0042] The control circuit board controls the grinding module to stop working and starts calculating the second compensation time. When the second compensation time is reached, the control circuit board controls the second drive motor to stop. The control circuit board controls the grinding module to stop working according to the preset grinding time. When the grinding module works and reaches the preset grinding time, the control circuit board controls the grinding module to stop working. The second compensation time is the time the second drive motor continues to work after the grinding module stops working.

[0043] As an improvement of the automatic powder distributing device of the present invention, when the positioning mechanism reaches the first position, the control circuit board controls the first driving motor to stop working, including:

[0044] When the positioning mechanism is moving, the second limit part triggers the third sensor, and the third sensor sends a third detection signal. The control circuit board determines that the positioning mechanism has reached the first position according to the third detection signal, and the control circuit board controls the first drive motor to stop working according to the third detection signal.

[0045] The beneficial effects of the present invention are as follows: by setting the positioning mechanism, it can be moved from the first position to the second position to move the extraction container to the powder distributor for further powder distribution. During this process, the powder distributor can remain stationary to simplify the structure of fixing the powder distributor to the grinding machine. The powder is introduced into the extraction container through the powder distributor. In the process of distributing the powder into the extraction container, the powder is confined in the powder distributor to prevent the powder from floating around. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of the automatic powder distribution device and the control method of the automatic powder distribution device, and the preferred embodiment of the grinding mill when the positioning mechanism is located at the first position;

[0047] Figure 2 It is a structural schematic diagram of the automatic powder distribution device and the control method of the automatic powder distribution device and the preferred embodiment of the grinding mill when the positioning mechanism of the grinding mill is located at the second position;

[0048] Figure 3 for Figure 1 Schematic diagram of the decomposition of

[0049] Figure 4 It is a structural schematic diagram of an automatic powder distribution device and a control method of the automatic powder distribution device, and a preferred embodiment of a grinding machine in which a positioning mechanism is assembled on a base;

[0050] Figure 5 for Figure 4 Schematic diagram of the decomposition of

[0051] Figure 6 It is a structural schematic diagram of the positioning mechanism of the automatic powder distribution device and the control method of the automatic powder distribution device and the preferred embodiment of the grinding machine of the present invention;

[0052] Figure 7 It is a schematic structural diagram of the automatic powder distribution device and the control method of the automatic powder distribution device, and the powder distribution device of the preferred embodiment of the grinding mill, which are assembled with the cover body and the fixing parts;

[0053] Figure 8 for Figure 7 Schematic diagram of the decomposition of

[0054] Fig. 9 for Figure 7 A cross-sectional view of

[0055] Fig.10 for Fig. 9 A magnified view of position A;

[0056] Fig.11 It is a structural schematic diagram of a powder distributor of a preferred embodiment of an automatic powder distribution device and a control method of the automatic powder distribution device and a powder distribution device of a grinding machine according to the present invention;

[0057] Fig.12 for Fig.11 Schematic diagram of the structure when looking upward;

[0058] Fig.13 for Fig.11 A cross-sectional view of

[0059] Fig.14 for Fig.13 A magnified view of position B;

[0060] Fig.15 It is a structural schematic diagram of a grinding mill according to another embodiment 1 of the automatic powder distribution device and the control method of the automatic powder distribution device and the grinding mill of the present invention;

[0061] Fig.16 The automatic powder distribution device and the control method of the automatic powder distribution device of the present invention, and the flow chart of the control method of the automatic powder distribution device of the preferred embodiment of the grinding machine. DETAILED DESCRIPTION

[0062] Next, combine Figures 1 to 16 The present invention is further described in the preferred embodiments and other embodiments. It should be noted that, under the premise of no conflict, the various technical features described below can be arbitrarily combined to form new embodiments.

[0063] refer to Figure 1-3In a preferred embodiment, the present invention provides a grinding machine, including a grinding module 300 and an automatic powder distribution device, the automatic powder distribution device including a powder distributor 10, a positioning mechanism 200, a first sliding track 9, a first drive motor 20, a second drive motor 30 and a control circuit board 80; a powder outlet 211 is provided at the bottom of the powder distributor 10, a powder lowering channel 32 is provided in the powder distributor 10, and the powder lowering channel 32 is connected to the powder outlet 211, and the powder distributor 10 is used to introduce the powder into the extraction container 90 and flatten and compact the powder in the extraction container 90; the positioning mechanism 200 is located at the bottom of the powder distributor 10. The positioning mechanism 200 is provided with a mounting cavity 61, and the mounting cavity 61 is used to place the extraction container 90. The positioning mechanism 200 has a first position and a second position relative to the powder distributor 10. When the positioning mechanism 200 is located at the first position, the positioning mechanism 200 is away from the powder distributor 10, so that the extraction container 90 can be taken from the positioning mechanism 200. When the positioning mechanism 200 is located at the second position, the positioning mechanism 200 is arranged close to the powder distributor 10, so that the powder distributor 10 can extend into the extraction container 90. In this embodiment, when the positioning mechanism 200 is located at the second position, The powder distributor 10 is in contact with the extraction container 90 and the powder outlet 211 is located in the extraction container 90; the first sliding track 9 is arranged in the up-down direction, the positioning mechanism 200 is slidably connected with the first sliding track 9, the output shaft of the first driving motor 20 is relatively fixedly connected with the positioning mechanism 200, the first driving motor 20 drives the positioning mechanism 200 to move along the first sliding track 9 between the first position and the second position, the second driving motor 30 is linked with the powder distributor 10 to drive the powder distributor 10 to rotate, the first driving motor 20 and the second driving motor 30 are both connected with the The control circuit board 80 is electrically connected, the grinding module 300 is located above the powder distributor 10, and the grinding module 300 is connected to the lower powder channel 32; by setting the positioning mechanism 200, it can be moved from the first position to the second position to move the extraction container 90 to the powder distributor 10 for powder distribution. During this process, the powder distributor 10 can remain stationary to simplify the structure of fixing the powder distributor 10 to the grinding machine. The powder is introduced into the extraction container 90 through the powder distributor 10. In the process of distributing the powder into the extraction container 90, the powder is confined in the powder distributor 10 to prevent the powder from floating around.

[0064] refer to Figure 4-6In a preferred embodiment, the automatic powder distribution device of the grinding machine of the present invention further includes a first sensor 40, a second sensor 50 and a third sensor 60, wherein the first sensor 40, the second sensor 50 and the third sensor 60 are all electrically connected to the control circuit board 80, the first sensor 40 is arranged in the installation cavity 61, the second sensor 50 is fixed relative to the positioning mechanism 200, the second sensor 50 is used to identify that the positioning mechanism 200 is located in the second position, the third sensor 60 is fixed relative to the positioning mechanism 200, and the third sensor 60 is used to identify that the positioning mechanism 200 is located in the first position; in this embodiment, the first sensor 40 is arranged in the positioning mechanism 200, the sensing portion of the first sensor 40 extends into the installation cavity 61, when the extraction container 90 is placed in the installation cavity 61, the extraction container 90 abuts against the sensing portion of the first sensor 40, the first sensor 40 sends a first detection signal, the control circuit board 80 identifies that the extraction container 90 has been placed in place according to the first detection signal, and the control circuit board 80 can start the subsequent powder distribution program to perform related powder distribution work. In this embodiment, the first sensor 40 , the second sensor 50 and the third sensor 60 are all micro switches.In a specific embodiment, the automatic powder distributing device also includes a first limiting portion 821, and the first limiting portion 821 is fixed relative to the first sliding rail 9. When the positioning mechanism 200 is located in the second position, the sensing portion of the second sensor 50 abuts against the first limiting portion 821; the automatic powder distributing device also includes a base 7 and a fixed bracket 8, the base 7 is arranged on the grinding machine, and the base 7 is located below the powder distributing device 10. The fixed bracket 8 includes a support plate 81 and a baffle 82. One end of the support plate 81 is fixed on the base 7, and the other end of the support plate 81 extends toward the powder distributing device 10. The baffle 82 extends from the other end of the support plate 81 toward the first sliding rail 9. One end of the first sliding rail 9 is fixed to the base 7, and the other end of the first sliding rail 9 is fixed to the baffle 82. The baffle 82 is located directly above the second sensor 50, and the baffle 82 is provided with the first limiting portion 821; the positioning mechanism 200 includes A fixed seat 6 and a first fixed block 64, the installation cavity 61 is provided on the fixed seat 6, the fixed seat 6 can slide along the first sliding track 9, the first fixed block 64 is fixed to the fixed seat 6, the second sensor 50 is installed on the first fixed block 64, and the sensing part of the second sensor 50 is provided on the side of the first fixed block 64 close to the first limiting part 821, so that the second sensor 50 slides with the fixed seat 6; the fixed seat 6 includes two sliding parts 62, and the two sliding parts 62 are respectively located on the opposite sides of the installation cavity 61, each of the sliding parts 62 has a sliding groove 63 passing through it along the sliding direction of the positioning mechanism 200, the first sliding track 9 includes two sliding rods 91 corresponding to the two sliding parts 62, and the sliding groove 63 is sleeved on the sliding rod 91. When the fixed seat 6 moves between the first position and the second position, the sliding part 62 slides along the sliding rod 91 to increase the stability of the positioning mechanism 200 during movement.

[0065] refer to Figure 4-6 In a preferred embodiment, each of the sliding parts 62 of the automatic powder distribution device of the grinding mill of the present invention includes a first sliding block 621 and a second sliding block 622 arranged at intervals along the sliding direction of the positioning mechanism 200, and the sliding groove 63 passes through the first sliding block 621 and the second sliding block 622. By arranging each of the sliding parts 62 to include a first sliding block 621 and a second sliding block 622, while ensuring that the contact length between the sliding part 62 and the sliding rod 91 remains unchanged, the contact area between the sliding part 62 and the sliding rod 91 is reduced, thereby reducing the resistance during the movement of the sliding part 62.

[0066] refer to Figure 4-6In a preferred embodiment, the automatic powder distribution device of the grinding mill of the present invention further includes a second limiting portion 71, the second limiting portion 71 is relatively fixed to the first sliding track 9, and when the positioning mechanism 200 is located at the first position, the sensing portion of the second sensor 50 abuts against the second limiting portion 71. In a specific embodiment, the positioning mechanism 200 further includes a second fixed block 65 and a connecting block 66, the connecting block 66 is installed on one side of the fixed seat 6, the connecting block 66 is connected to the output shaft of the first drive motor 20, the second fixed block 65 is arranged on the connecting block 66, the third sensor 60 is installed on the second fixed block 65, and the sensing portion of the third sensor 60 is arranged on the side of the second fixed block 65 close to the second limiting portion 71, so that the third sensor 60 slides with the fixed seat 6; the first drive motor 20 is fixed to the base 7, and the second limiting portion 71 is arranged on the base 7, and the connecting block 66 and the fixed seat 6 are separately formed to simplify the molding process of the positioning mechanism 200.

[0067] refer to Fig.11 , 1213. In a preferred embodiment, the powder distributor 10 of the grinding mill of the present invention includes a side wall 14 and a bottom wall 21 connected to the lower end of the side wall 14, the side wall 14 and the bottom wall 21 are arranged to form an accommodating space 216, the accommodating space 216 includes a powder cavity 31 and the lower powder channel 32, the upper side of the powder cavity 31 is open, the bottom wall 21 is provided with a powder outlet 211 and a powder scraping portion 212, the lower powder channel 32 extends downward from the powder cavity 31 to the powder outlet 211, the powder outlet 211 is located between the center of the bottom wall 21 and the edge of the bottom wall 21, the powder scraping portion 212 extends from the center of the bottom wall 21 to the edge of the bottom wall 21, and the powder scraping portion 212 protrudes downward from the powder outlet 211. When the powder distributor 10 is working, the second drive motor 30 drives the powder distributor 10 to rotate along the rotation axis a passing through the center of the bottom wall 21 and arranged in the up and down directions. By arranging the powder outlet 211 between the center of the bottom wall 21 and the edge of the bottom wall 21, and the powder scraping portion 212 extending from the center of the bottom wall 21 to the edge of the side wall 14, the powder entering the powder chamber 31 enters the extraction container through the powder outlet 211. During the rotation of the powder distributor 10, the powder scraping portion 212 will promptly flatten the accumulated powder coming out of the powder outlet 211, so that the powder is evenly distributed throughout the extraction container, so as to avoid the powder outlet 211 being blocked and affecting the powder discharge speed of the powder outlet 211. At the same time, by arranging the powder scraping portion 212 to protrude downward from the powder outlet 211, after the powder is evacuated by the powder scraping portion 212, a space is maintained between the powder in the extraction container and the powder outlet 211, so as to ensure that the powder is discharged from the powder outlet 211 continuously and uninterruptedly, so as to ensure the powder discharge speed.

[0068] refer to Fig.11 , 12 13. In a preferred embodiment, the bottom wall 21 of the powder distributor of the grinding mill of the present invention is provided with a planar pressed powder surface 213, and the pressed powder surface 213 is distributed from the center of the bottom wall 21 to the edge of the bottom wall 21; by providing the pressed powder surface 213, while discharging powder, the powder scraping portion 212 flattens the powder while the pressed powder surface 213 presses the powder down, so that the powder density at various locations in the extraction container is equivalent, and at the same time, more space is ensured between the powder in the extraction container and the powder outlet 211; by providing the pressed powder surface 213 distributed from the center of the bottom wall 21 to the edge of the side wall 14, the powder in the extraction container is pressed down by the pressed powder surface 213 in all directions.

[0069] refer to Fig.11 , 1213. In a preferred embodiment, the pressed powder surface 213 of the powder distributor of the grinding mill of the present invention is inclined upward from a side close to the powder outlet 211 toward a direction away from the powder outlet 211, and the powder scraping portion 212 is formed on a side of the pressed powder surface 213 close to the powder outlet 211.

[0070] refer to Fig.11 , 12 13. In a preferred embodiment, the bottom wall 21 of the powder distributor of the grinding mill of the present invention is provided with a platform 214, and the platform 214 is arranged offset from the center of the bottom wall 21 and extends to the edge of the bottom wall 21, and the platform 214 is recessed upward in the powder scraping portion 212, and the powder outlet 211 is opened on the platform 214. By arranging the platform 214 to be recessed in the powder scraping portion 212, the space between the powder outlet 211 and the powder in the extraction container is made larger during the powder outlet 211 discharging powder, and more powder coming out of the powder outlet 211 can be accommodated at the same time, so as to ensure the powder output of the powder outlet 211 per unit time, so as to accelerate the powder discharging speed of the powder outlet 211. The platform 214 is recessed upward to form a receiving groove 215, and the receiving groove 215 extends to the powder outlet 211. By providing the receiving groove 215, the space between the powder outlet 211 and the powder in the extraction container is larger during the powder discharge process of the powder outlet 211, and more powder coming out of the powder outlet 211 can be accommodated at the same time to ensure the powder discharge amount of the powder outlet 211 per unit time, so as to accelerate the powder discharge speed of the powder outlet 211.

[0071] refer to Fig.11 , 12 13. In a preferred embodiment, the powder distributor of the grinding mill of the present invention is provided with at least two powder outlets 211, each of which is provided with a corresponding powder lowering channel 32, each of which is provided with a corresponding powder scraping portion 212, and a powder pressing surface 213 is provided between any two adjacent powder outlets 211, and the powder pressing surface 213 is formed by extending obliquely upward from the powder scraping portion 212 corresponding to any one of the powder outlets 211 toward the other powder outlet 211. By reasonably arranging the The powder outlet 211, the powder scraping portion 212 and the powder pressing surface 213 can evacuate the powder in time while ensuring the powder output per unit time. In addition, the powder distributor 10 also has a powder pressing function. In this embodiment, the two powder outlets 211 are provided with two, and the two powder outlets 211 are symmetrically arranged along the center of the bottom wall 21. The powder scraping portion 212 corresponding to one of the two powder outlets 211 is formed by extending in the opposite direction of the powder scraping portion 212 corresponding to the other powder outlet 211.

[0072] refer to Figure 7-9 In a preferred embodiment, the automatic powder distribution device of the grinding mill of the present invention further comprises a fixing member 4 and a cover 5, wherein the cover 5 is disposed above the powder distribution device 10 and is rotatably connected to the powder distribution device 10, the cover 5 is provided with a powder inlet 52, and the powder inlet 52 is communicated with the lower powder channel 32, the fixing member 4 is used to fix the powder distribution device 10 on the grinding mill, the fixing member 4 is sleeved outside the powder distribution device 10 and is rotatably connected to the powder distribution device 10, the cover 5 and the fixing member 4 are tightly connected, and the transmission The transmission member 13 is sleeved on the outside of the powder distributor 10, and the outer periphery of the transmission member 13 is provided with gear teeth 131, and the gear teeth 131 are engaged with the driving gear of the second driving motor 30 to drive the powder distributor 10 to rotate, and the powder distributor 10 is rotationally connected to the cover body 5. The powder inlet 52 is connected to the powder lowering channel 32. The powder distributor 10 can also be closed during the working process to confine the powder in the powder distributor 10, and then distributed into the extraction container 90 through the powder distributor 10 to prevent the powder from floating around.

[0073] like Figure 9-10 , Figure 13-14As shown, in a preferred embodiment, the distributor of the grinding mill of the present invention includes a boss 15, the boss 15 is arranged outside the side wall 14, the top surface of the boss 15 is provided with a first matching surface 151, the first matching surface 151 is recessed downward to have a first roller accommodating groove 153, the cover body 5 includes a plate cover 51 and a fixing ring 54, the plate cover 51 is arranged on the upper side of the powder chamber 31, the powder inlet 52 is arranged on the plate cover 51, the fixing ring 54 is sleeved outside the side wall 14, the fixing ring 54 is relatively fixed to the plate cover 51, the bottom surface of the fixing ring 54 is provided with a second matching surface 541 located above the first matching surface 151 and the first matching surface 151 and the first matching surface 153 are connected to each other. There is a gap between the two mating surfaces 541, and the second mating surface 541 is recessed with a second roller receiving groove 542 upwardly, and the second roller receiving groove 542 is aligned with the first roller receiving groove 153 up and down. A plurality of first rollers 101 are clamped between the first roller receiving groove 153 and the second roller receiving groove 542 and are distributed along the outer circumference of the side wall 14. By clamping the plurality of first rollers 101 between the first roller receiving groove 153 and the second roller receiving groove 542, a gap is provided between the first mating surface 151 and the second mating surface 541, so that when the powder distributor 10 rotates, the first roller 101 is located between the first roller receiving groove 153 and the second roller receiving groove 542. The first roller 101 rolls between the accommodating grooves 542 to reduce the friction between the cover body 5 and the powder distributor 10. In the present embodiment, the first roller accommodating groove 153 is composed of a plurality of first pit holes, and a plurality of the first pit holes correspond to the first rollers 101 one by one. A plurality of the first pit holes are distributed at intervals on the periphery of the side wall 14, and each of the first rollers 101 is arranged in the corresponding first pit hole. The second roller accommodating groove 542 is an annular groove arranged around the periphery of the side wall 14. During the rotation of the powder distributor 10, the first roller 101 slides along the second roller accommodating groove 542. In another embodiment, the second roller accommodating groove 542 is composed of a plurality of first pit holes, and a plurality of the first pit holes correspond to the first rollers 101 one by one. The first pit holes correspond one to one with the first roller 101, and a plurality of the first pit holes are spaced apart on the periphery of the side wall 14, and each of the first rollers 101 is disposed in the corresponding first pit hole. The first roller receiving groove 153 is an annular groove disposed around the periphery of the side wall 14, and during the rotation of the powder distributor 10, the first roller 101 slides along the first roller receiving groove 153; in another embodiment, the first roller receiving groove 153 and the second roller receiving groove 542 are both annular grooves and disposed around the periphery of the side wall 14, and during the rotation of the powder distributor 10, the first roller 101 slides along the first roller receiving groove 153 and the second roller receiving groove 542.

[0074] like Figure 9-10 , Figure 13-14As shown, in a preferred embodiment, the distributor of the mill of the present invention includes a boss 15, the boss 15 is arranged outside the side wall 14, the bottom surface of the boss 15 is provided with a third matching surface 152, the third matching surface 152 is recessed upward and provided with a third roller receiving groove 154, the first support platform 42 is provided with a fourth matching surface 421 located below the third matching surface 152, and there is a gap between the third matching surface 152 and the fourth matching surface 421, the fourth matching surface 421 is recessed downward and provided with a fourth roller receiving groove 422, the fourth roller receiving groove 422 is aligned with the third roller receiving groove 154, and the plurality of second rollers 102 The second rollers 102 are clamped between the third roller receiving groove 154 and the fourth roller receiving groove 422 and are distributed along the outer periphery of the side wall 14. A plurality of the second rollers 102 are clamped between the third roller receiving groove 154 and the fourth roller receiving groove 422, and a gap is provided between the third mating surface 152 and the fourth mating surface 421, so that when the powder distributor 10 rotates, the second rollers 102 can roll between the third roller receiving groove 154 and the fourth roller receiving groove 422, so as to reduce the friction between the cover body 5 and the powder distributor 10, and so that the first support platform 42 can support the powder distributor 10 upward, thereby enhancing the working In the present embodiment, the third roller receiving groove 154 is composed of a plurality of second pit holes, and the plurality of second pit holes correspond to the second roller 102 one by one, and the plurality of second pit holes are distributed at intervals on the outer periphery of the side wall 14, and each second roller 102 is arranged in the corresponding second pit hole, and the fourth roller receiving groove 422 is an annular groove arranged around the outer periphery of the side wall 14, and during the rotation of the powder distributor 10, the second roller 102 slides along the fourth roller receiving groove 422; in another embodiment, the fourth roller receiving groove 422 is composed of a plurality of second pit holes, and the plurality of second pit holes correspond to the second roller 1 02 correspond one by one, a plurality of the second pit holes are spaced apart on the periphery of the side wall 14, each of the second rollers 102 is disposed in the corresponding second pit hole, the third roller receiving groove 154 is an annular groove disposed around the periphery of the side wall 14, and during the rotation of the powder distributor 10, the second roller 102 slides along the third roller receiving groove 154; in another embodiment, the third roller receiving groove 154 and the fourth roller receiving groove 422 are both annular grooves and disposed around the periphery of the side wall 14, and during the rotation of the powder distributor 10, the second roller 102 slides along the third roller receiving groove 154 and the fourth roller receiving groove 422.

[0075] refer to Figure 1In a preferred embodiment, the automatic powder distribution device of the grinding mill of the present invention also includes a vibration mechanism 104, which is arranged on the fixing member 4, and the vibration contact portion of the vibration mechanism 104 elastically abuts against the powder distributor 10; the vibration mechanism 104 shakes off the residual powder in the powder distributor 10.

[0076] refer to Figure 1 , 2 In a preferred embodiment, the milling machine of the present invention further comprises a milling mechanism 303, a milling chamber 304, a powder delivery channel 302 and a third driving motor 305. The third driving motor 305 is electrically connected to the control circuit board 80. The powder delivery channel 302 communicates with the milling module 300 and the lower powder channel 32. Specifically, the milling mechanism 303 extends into the milling chamber 304. The output shaft of the third driving motor 305 is relatively fixedly connected to the milling mechanism 303 to drive the milling mechanism 303 to rotate. The powder delivery channel 302 communicates with the milling chamber 304 and the lower powder channel 32. When the milling machine is working, the beverage raw material is placed in the milling chamber 304, the control circuit board 80 controls the third driving motor 305 to work, and the third driving motor 305 drives the milling mechanism 303 to rotate to grind the beverage raw material into powder.

[0077] refer to Fig.15 In the other embodiment 1 of the grinding mill of the present invention, the difference from the preferred embodiment is that no powder feeding channel 302 is provided. Specifically, a powder feeding port 301 is provided below the grinding module 300 of the grinding mill of the present invention, that is, a powder feeding port 301 is provided below the grinding chamber 304, and the powder feeding port 301 is aligned with the powder distributor 10 in the upper and lower directions, and the powder feeding port 301 is connected with the lower powder channel 32.

[0078] refer to Figure 1 In a preferred embodiment, the powder distributor 10 of the grinding mill of the present invention is provided with an antistatic device 105.

[0079] like Fig.16 As shown, the present invention provides a control method for an automatic powder distribution device, which is applied to the above-mentioned grinding mill and includes the following steps:

[0080] S1. In the initial state of the grinding mill, the positioning mechanism 200 is set at the first position, and the extraction container 90 is placed on the positioning mechanism 200. When the extraction container 90 is ensured to be in place, the control circuit board 80 controls the first drive motor 20 to work. In this embodiment, specifically, the extraction container 90 is placed on the positioning mechanism 200 and the first sensor 40 is triggered. The first sensor 40 sends a first detection signal. The control circuit board 80 determines that the extraction container 90 is in place according to the first detection signal. The control circuit board 80 controls the first drive motor 20 to work according to the first detection signal, wherein the first drive motor 20 drives the positioning mechanism 200 to move from the first position to the second position along the first sliding track 9;

[0081] S2. When ensuring that the positioning mechanism 200 reaches the second position, the control circuit board 80 controls the first drive motor 20 to stop working. In the present embodiment, specifically, during the movement of the positioning mechanism 200, the first limit portion 821 triggers the second sensor 50, and the second sensor 50 sends a second detection signal. The control circuit board 80 determines that the positioning mechanism 200 has reached the second position according to the second detection signal. The control circuit board 80 controls the first drive motor 20 to stop working according to the second detection signal, and controls the second drive motor 30 to work. The second drive motor 30 drives the powder distributor 10 to work, and the powder distributor 10 evenly distributes the powder in the extraction container 90 and compacts it. In the present embodiment, specifically, The control circuit board 80 receives the second detection signal and controls the second drive motor 30 to work and starts calculating the first compensation time. When the first compensation time is reached, the control circuit board 80 controls the grinding module 300 to work. The grinding module 300 grinds the beverage raw materials placed therein and transmits the ground powder to the powder distributor 10. The first compensation time refers to the time difference between the time node when the second drive motor 30 starts working and the time node when the grinding module 300 starts working. By setting the first compensation time, it is ensured that when the powder generated by the grinding module 300 enters the powder distributor 10, the powder distributor 10 is already working. In this example, the first compensation time is 5 seconds, that is, the grinding module 300 starts working after the powder distributor 10 works for 5 seconds.

[0082] S3. Under the condition of ensuring that the powder distributor completes the powder distribution work, the control circuit board 80 controls the second drive motor 30 to stop working. In this example, specifically, the control circuit board 80 controls the grinding module 300 to stop working and starts to calculate the second compensation time. When the second compensation time is reached, the control circuit board 80 controls the second drive motor 30 to stop working. The control circuit board 80 controls the grinding module 300 to stop working according to the preset grinding time. When the grinding module 300 works and reaches the preset grinding time, the control circuit board 80 controls the grinding module 300 to stop working. The second compensation time is the time during which the second drive motor 30 continues to work after the grinding module 300 stops working. By setting the second compensation time, it is ensured that after the grinding module 300 stops working, it is still conveying to When the powder on the way of the powder distributor 10 enters the powder distributor 10, the powder distributor 10 is working to ensure that after the grinding module 300 stops working, the powder still being transported to the powder distributor 10 enters the extraction container 90, and then the positioning mechanism 200 leaves the second position. For example, in one embodiment, the preset grinding time is 7 seconds and the second compensation time is 5 seconds. The control circuit board 80 receives the second detection signal and starts to control the grinding module 300 to work. After the grinding module 300 works for 7 seconds, the control circuit board 80 controls the grinding module 300 to stop working and starts to calculate the second compensation time. After 5 seconds, the control circuit board 80 controls the second drive motor 30 to stop working, and controls the first drive motor 20 to drive the positioning mechanism 200 to move from the second position to the first position along the first sliding track 9.

[0083] S4. When the positioning mechanism 200 reaches the first position, the control circuit board 80 controls the first drive motor 20 to stop working. In the present embodiment, specifically, when the positioning mechanism 200 is moving, the second limit portion 71 triggers the third sensor 60, and the third sensor 60 sends a third detection signal. The control circuit board 80 determines that the positioning mechanism 200 reaches the first position according to the third detection signal, and the control circuit board 80 controls the first drive motor 20 to stop working according to the third detection signal.

[0084] The working principle of an automatic powder distributing device and a control method of the automatic powder distributing device and a grinding mill of the present invention is as follows: the grinding mill is in an initial state, the positioning mechanism 200 is located at a first position, the extraction container 90 is placed in the installation cavity 61, the extraction container 90 abuts against the first sensor 40, the first sensor 40 sends out a first detection information, the control circuit board 80 determines that the extraction container 90 is placed in place according to the first detection information and controls the first drive motor 20 to work, the first drive motor 20 drives the positioning mechanism 200 to move along the first sliding track 9 toward the second position, the second sensor 50 abuts against the first limit portion 821 and sends out a second detection signal, the control circuit board 80 determines that the positioning mechanism 200 reaches the second position according to the second detection signal and controls the first drive motor 20 to stop working, and the powder distributing device 10 extends into the extraction container 90, at the same time, the control circuit board 80 controls the second drive motor 30 to work so as to drive the powder distributor 10 to rotate, the grinding module 300 allows the ground powder to enter the powder distributor 10 from the powder inlet 52, and then enter the extraction container 90 from the powder outlet 211 through the lower powder channel 32, and the powder distributor 10 flattens and compacts the powder in the extraction container 90 during rotation, and the control circuit board 80 determines that the powder has been distributed into the extraction container 90 according to the time set for the powder distributor 10 to rotate, and controls the first drive motor 20 to work so as to drive the positioning mechanism 200 to move toward the first position, the third sensor 60 abuts against the second limit portion 71 and sends out third detection information, and the control circuit board 80 determines that the positioning mechanism 200 returns to the first position according to the third detection information, and controls the first drive motor 20 to stop working.

[0085] The beneficial effects of the automatic powder distribution device, the control method of the automatic powder distribution device, and the grinding mill of the present invention are as follows: by setting the positioning mechanism, it can be moved from the first position to the second position to move the extraction container to the powder distribution device for further powder distribution. During this process, the powder distribution device can remain stationary to simplify the structure of fixing the powder distribution device to the grinding mill. The powder is introduced into the extraction container through the powder distribution device. In the process of distributing the powder into the extraction container, the powder is confined in the powder distribution device to prevent the powder from floating around.

[0086] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. An automatic powder distribution device, applied to a grinding mill, characterized in that: It includes a powder distributor, a positioning mechanism, a first sliding track, a first driving motor, a second driving motor and a control circuit board; A powder outlet is provided at the bottom of the powder distributor, a powder lowering channel is provided in the powder distributor, the powder lowering channel is connected to the powder outlet, and the powder distributor is used to introduce the powder into the extraction container and flatten and compact the powder in the extraction container; The positioning mechanism is located below the powder distributor, and is provided with a mounting cavity, and the mounting cavity is used to place the extraction container. The positioning mechanism has a first position and a second position relative to the powder distributor. When the positioning mechanism is located at the first position, the positioning mechanism is away from the powder distributor, so that the extraction container can be taken from the positioning mechanism. When the positioning mechanism is located at the second position, the positioning mechanism is arranged close to the powder distributor, so that the powder distributor can be extended into the extraction container. The first sliding rail is arranged along the up and down directions, the positioning mechanism is slidably connected to the first sliding rail, the output shaft of the first driving motor is relatively fixedly connected to the positioning mechanism, the first driving motor drives the positioning mechanism to move along the first sliding rail between a first position and a second position, the second driving motor is linked with the powder distributor to drive the powder distributor to rotate, and the first driving motor and the second driving motor are both electrically connected to the control circuit board.

2. The automatic powder distributing device according to claim 1, characterized in that: It also includes a first sensor, a second sensor and a third sensor, wherein the first sensor, the second sensor and the third sensor are all electrically connected to the control circuit board, the first sensor is arranged in the installation cavity, the second sensor is fixed relative to the positioning mechanism, and the second sensor is used to identify that the positioning mechanism is located in the second position, and the third sensor is fixed relative to the positioning mechanism, and the third sensor is used to identify that the positioning mechanism is located in the first position.

3. The automatic powder distributing device according to claim 2, characterized in that: It also includes a first limiting portion, which is fixed relative to the first sliding track. When the positioning mechanism is located at the second position, the sensing portion of the second sensor abuts against the first limiting portion. The positioning mechanism includes a fixed seat and a first fixed block. The mounting cavity is provided on the fixed seat. The fixed seat can slide along the first sliding track. The first fixed block is fixed to the fixed seat. The second sensor is installed on the first fixed block. The sensing portion of the second sensor is provided on a side of the first fixed block close to the first limiting portion.

4. The automatic powder distributing device according to claim 3, characterized in that: The fixing seat includes two sliding parts, and the two sliding parts are respectively located on opposite sides of the installation cavity. Each sliding part has a sliding groove passing through it along the sliding direction of the positioning mechanism. The first sliding track includes two sliding rods corresponding to the two sliding parts one by one, and the sliding groove is sleeved on the sliding rods.

5. The automatic powder distributing device according to claim 4, characterized in that: Each of the sliding parts comprises a first sliding block and a second sliding block which are arranged at intervals along the sliding direction of the positioning mechanism, and the sliding groove passes through the first sliding block and the second sliding block.

6. The automatic powder distributing device according to claim 2, characterized in that: It also includes a second limiting portion, which is relatively fixed to the first sliding track. When the positioning mechanism is located at the first position, the sensing portion of the second sensor abuts against the second limiting portion. The positioning mechanism also includes a second fixed block and a connecting block. The mounting cavity is provided on the fixed seat, and the fixed seat slides along the first sliding track. The connecting block is installed on one side of the fixed seat, and the connecting block is connected to the output shaft of the first driving motor. The second fixed block is provided on the connecting block. The third sensor is installed on the second fixed block, and the sensing portion of the third sensor is provided on a side of the second fixed block close to the second limiting portion.

7. The automatic powder distributing device according to claim 1, characterized in that: The powder distributor includes a side wall and a bottom wall connected to the lower end of the side wall, the side wall and the bottom wall are arranged to form an accommodating space, the accommodating space includes a powder chamber and the lower powder channel, the upper side of the powder chamber is open, the bottom wall is provided with a powder outlet and a powder scraping portion, the lower powder channel extends downward from the powder chamber to the powder outlet, the powder outlet is located between the center of the bottom wall and the edge of the bottom wall, the powder scraping portion extends from the center of the bottom wall to the edge of the bottom wall, and the powder scraping portion protrudes downward from the powder outlet. When the powder distributor is working, the second drive motor drives the powder distributor to rotate along a rotating axis passing through the center of the bottom wall and arranged in the up and down directions.

8. The automatic powder distributing device according to claim 7, characterized in that: The bottom wall is provided with a planar pressed powder surface, which is distributed from the center of the bottom wall to the edge of the bottom wall. The pressed powder surface is inclined upward from a side close to the powder outlet toward a direction away from the powder outlet, and the powder scraping portion is arranged on a side of the pressed powder surface close to the powder outlet.

9. The powder distributing device capable of dropping powder according to claim 7, characterized in that: The bottom wall is provided with a platform, which is arranged away from the center of the bottom wall and extends to the edge of the bottom wall. The platform is recessed upward in the powder scraping portion, and the powder outlet is opened on the platform. A receiving groove is formed by being recessed upward from the platform, and the receiving groove extends to the powder outlet.

10. The automatic powder distributing device according to claim 7, characterized in that: The bottom wall is provided with a planar pressed powder surface, and the pressed powder surface is distributed from the center of the bottom wall to the edge of the bottom wall. At least two powder outlets are provided, and each of the powder outlets is provided with a corresponding powder scraping portion. A pressed powder surface is provided between any two adjacent powder outlets, and the pressed powder surface is formed by extending obliquely upward from the powder scraping portion corresponding to any one of the powder outlets toward the other powder outlet.

11. The automatic powder distributing device according to claim 7, characterized in that: It also includes a fixing part and a cover body, wherein the cover body is arranged on the top of the powder chamber and is rotatably connected to the powder distributor, the cover body is provided with a powder inlet, the fixing part is used to fix the powder distributor on the grinding mill, the fixing part is sleeved outside the powder distributor and is rotatably connected to the powder distributor, the cover body and the fixing part are tightly connected, the outer periphery of the powder distributor is sleeved with a transmission part, the outer periphery of the transmission part is provided with gear teeth, the gear teeth are meshed with the driving gear of the second driving motor to drive the powder distributor to rotate.

12. The automatic powder distributing device according to claim 11, characterized in that: The distributor includes a boss, which is arranged outside the side wall, and the top surface of the boss is provided with a first mating surface, and the first mating surface is recessed downwardly with a first roller accommodating groove, and the cover body includes a plate cover and a fixing ring, the plate cover is arranged on the upper side of the powder chamber, the powder inlet is arranged on the plate cover, and the fixing ring is sleeved outside the side wall, the fixing ring and the plate cover are relatively fixed, and the bottom surface of the fixing ring is provided with a second mating surface located above the first mating surface, and there is a gap between the first mating surface and the second mating surface, and the second mating surface is recessed upwardly with a second roller accommodating groove, and the second roller accommodating groove is aligned with the first roller accommodating groove up and down, and a plurality of first rollers are clamped between the first roller accommodating groove and the second roller accommodating groove and distributed along the circumference of the side wall.

13. The powder distributing assembly according to claim 12, characterized in that: The first roller accommodating groove and the second roller accommodating groove are both annular grooves and are arranged around the outer periphery of the side wall; or, The first roller accommodating groove is composed of a plurality of first pit holes, the plurality of first pit holes correspond to the first rollers one by one, the plurality of first pit holes are distributed at intervals on the outer periphery of the side wall, each of the first rollers is arranged in the corresponding first pit hole, and the second roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall; or, The second roller accommodating groove is composed of a plurality of first pit holes, and the plurality of first pit holes correspond one-to-one to the first rollers. The plurality of first pit holes are distributed at intervals on the outer periphery of the side wall, and each first roller is arranged in the corresponding first pit hole. The first roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall.

14. The automatic powder distributing device according to claim 11, characterized in that: The distributor includes a boss, which is arranged outside the side wall, and a third mating surface is provided on the bottom surface of the boss, and a third roller accommodating groove is recessed upward on the third mating surface. The fixing member includes a first support platform, which is arranged outside the side wall, and a fourth mating surface is provided on the first support platform. The fourth mating surface is located below the third mating surface and there is a gap between the third mating surface and the fourth mating surface, and a fourth roller accommodating groove is recessed downward on the fourth mating surface, and the fourth roller accommodating groove is aligned with the third roller accommodating groove up and down, and a plurality of second rollers are clamped between the third roller accommodating groove and the fourth roller accommodating groove and distributed along the outer circumference of the side wall.

15. The powder distributing assembly according to claim 14, characterized in that: The third roller accommodating groove and the fourth roller accommodating groove are both annular grooves and are arranged around the outer periphery of the side wall; or, The third roller accommodating groove is composed of a plurality of second pit holes, the plurality of second pit holes correspond to the second rollers one by one, the plurality of second pit holes are distributed at intervals on the outer periphery of the side wall, each second roller is arranged in the corresponding second pit hole, and the fourth roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall; or, The fourth roller accommodating groove is composed of a plurality of second pit holes, and the plurality of second pit holes correspond one-to-one to the second rollers. The plurality of second pit holes are distributed at intervals on the outer periphery of the side wall, and each second roller is arranged in the corresponding second pit hole. The third roller accommodating groove is an annular groove and is arranged around the outer periphery of the side wall.

16. The automatic powder distributing device according to claim 11, characterized in that: The utility model further comprises a vibration mechanism, wherein the vibration mechanism is arranged on the fixing member, and a vibration contact portion of the vibration mechanism elastically abuts against the powder distributor.

17. A grinding machine, characterized in that: It comprises a grinding module and the automatic powder distribution device according to any one of claims 1 to 16, wherein the grinding module is located above the powder distributor, and the grinding module is connected to the powder lowering channel.

18. The grinding mill according to claim 17, characterized in that It also includes a powder delivery channel, which is connected to the powder grinding module and the powder lowering channel.

19. The grinding mill according to claim 17, characterized in that A powder feeding port is provided below the grinding module, the powder feeding port is aligned with the powder distributor up and down, and the powder feeding port is communicated with the powder lowering channel.

20. The grinding mill according to claim 17, characterized in that The powder distributor is provided with an antistatic device.

21. A control method for an automatic powder distributing device, characterized in that: Applied to a grinding mill, the steps include: In the initial state of the mill, the positioning mechanism is set at the first position, and the extraction container is placed on the positioning mechanism. When the extraction container is ensured to be in place, the control circuit board controls the first drive motor to work, wherein the first drive motor drives the positioning mechanism to move from the first position to the second position along the first sliding track; When ensuring that the positioning mechanism reaches the second position, the control circuit board controls the first drive motor to stop working and controls the second drive motor to work, and the second drive motor drives the powder distributor to work, and the powder distributor evenly distributes the powder in the extraction container and compacts it; When ensuring that the powder distributor completes the powder distribution work, the control circuit board controls the second drive motor to stop working, and controls the first drive motor to drive the positioning mechanism to move from the second position to the first position along the first sliding track; When the positioning mechanism reaches the first position, the control circuit board controls the first driving motor to stop working.

22. The control method of the automatic powder distributing device according to claim 21, characterized in that: When the extraction container is placed in place, controlling the control circuit board to control the first drive motor to work includes: The extraction container is placed and positioned on the positioning mechanism and the first sensor is triggered. The first sensor sends a first detection signal. The control circuit board determines that the extraction container has been placed in place according to the first detection signal. The control circuit board controls the first drive motor to work according to the first detection signal.

23. The control method of the automatic powder distributing device according to claim 21, characterized in that: When ensuring that the positioning mechanism reaches the second position, the control circuit board controls the first drive motor to stop working, including: During the movement of the positioning mechanism, the first limit part triggers the second sensor, the second sensor sends a second detection signal, the control circuit board determines that the positioning mechanism has reached the second position according to the second detection signal, and the control circuit board controls the first drive motor to stop working according to the second detection signal.

24. The control method of the automatic powder distributing device according to claim 21, characterized in that: The powder distributor distributes the powder in the extraction container including: The control circuit board receives the second detection signal and simultaneously controls the operation of the second drive motor and starts calculating the first compensation time. When the first compensation time is reached, the control circuit board controls the operation of the grinding module, and the grinding module grinds the beverage raw materials placed therein and transfers the ground powder to the powder distributor, wherein the first compensation time refers to the time difference between the time node when the second drive motor starts working and the time node when the grinding module starts working.

25. The control method of the automatic powder distributing device according to claim 24, characterized in that: When ensuring that the powder distributor completes the powder distribution work, the control circuit board controls the second drive motor to stop working, including: The control circuit board controls the grinding module to stop working and starts calculating the second compensation time. When the second compensation time is reached, the control circuit board controls the second drive motor to stop. The control circuit board controls the grinding module to stop working according to the preset grinding time. When the grinding module works and reaches the preset grinding time, the control circuit board controls the grinding module to stop working. The second compensation time is the time the second drive motor continues to work after the grinding module stops working.

26. The control method of the automatic powder distributing device according to claim 21, characterized in that: When the positioning mechanism reaches the first position, the control circuit board controls the first drive motor to stop working, including: When the positioning mechanism is moving, the second limit part triggers the third sensor, and the third sensor sends a third detection signal. The control circuit board determines that the positioning mechanism has reached the first position according to the third detection signal, and the control circuit board controls the first drive motor to stop working according to the third detection signal.

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