Multi-stage crushing assembly and crusher for Chinese herbal medicines

Abstract

The Chinese herbal medicine multi-stage crushing assembly comprises a shell and a first crushing mechanism, the first crushing mechanism is arranged in the shell, the first crushing mechanism comprises a first crushing assembly, and the first crushing assembly is located below a top opening of the shell; the first buffering piece is located below the first crushing assembly, the top of the first buffering piece is open, and a first filtering piece is arranged at the bottom of the first buffering piece; the first conveying assembly is connected with the first buffering piece, and the first conveying piece is used for conveying materials in the first buffering piece to the side direction of the first filtering piece; one end of the discharging piece is located on one side of the first filtering piece, and the other end of the discharging piece communicates with the bottom of the first buffering piece; and the second smashing mechanism is located below the first filtering piece and the discharging piece, and the second smashing mechanism is used for smashing materials falling from the first filtering piece and the discharging piece.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese herbal medicine pulverization, in particular to a Chinese herbal medicine multi-stage pulverization component and a pulverizer. Background Art

[0002] In the field of Chinese herbal medicine processing, multi-stage crushing is a key process to ensure uniform herbal particles and improve efficacy. However, since the particle size of Chinese herbal materials is large and uneven in the original state, the primary crusher needs to spend a long time to crush the herbal materials to a particle size suitable for secondary crushing during the initial crushing process. During this long primary crushing and filtering time, the secondary crusher is idle because it fails to receive enough materials in time. This mismatch not only reduces the overall production efficiency. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a Chinese herbal medicine multi-stage crushing component and a crusher.

[0004] The technical solution adopted by the present invention is: a Chinese herbal medicine multi-stage crushing component, comprising:

[0005] A shell having an opening at the top;

[0006] A first crushing mechanism, wherein the first crushing mechanism is disposed in the housing, and the first crushing mechanism comprises:

[0007] a first pulverizing assembly, the first pulverizing assembly being located below the top opening of the housing;

[0008] A first buffer, the first buffer is located below the first crushing assembly, the top of the first buffer is open, and a first filter is provided at the bottom of the first buffer; the first filter is used to filter materials;

[0009] A first conveying component, wherein the first conveying component is connected to the first buffer, and the first conveying component is used to convey the material in the first buffer to the side of the first filter element;

[0010] A discharge member, wherein both ends of the discharge member are open, one end of the discharge member is located at one side of the first filter member, and one end of the discharge member is connected to the bottom of the first buffer member;

[0011] The second pulverizing mechanism is located below the first filter element and the discharging element, and is used for pulverizing materials falling from the first filter element and the discharging element.

[0012] Preferably, the first pulverizing mechanism further includes a second conveying assembly, the second conveying assembly is connected to the first buffer, and the second conveying assembly is used to convey the material in the first buffer to above the first pulverizing assembly.

[0013] Preferably, the first pulverizing mechanism further includes a second buffer component, and the second buffer component is arranged below the first buffer component;

[0014] The second buffer component comprises a fixed part, a movable part, an elastic part and a second filter part, the top of the fixed part is connected to the bottom of the first buffer part, the movable part is connected to the fixed part through the elastic part, the second filter part is connected to the side wall of the movable part, the second filter part is located below the first filter part, and the filter particle diameters of the second filter part and the first filter part are the same;

[0015] The discharge member includes a feed port, a tube body and a discharge port, and the feed port, the tube body and the discharge port are connected in sequence. The top of the feed port is connected to the bottom of the first buffer member. The discharge port is located on one side of the movable member. When the elastic member is stretched to a preset length, the movable member is used to block the discharge port.

[0016] Preferably, the first conveying assembly includes a first driving member and a first screw conveying member, the first screw conveying member is located in the first buffer member, the first driving member is fixed to the outer wall of the shell, and the output end of the first driving member is connected to the first screw conveying member.

[0017] Preferably, the second conveying assembly includes an outer shell, a second driving member and a second screw conveying member, one end of the outer shell is connected to the first buffer member, the other end of the outer shell is connected to the inner wall of the shell, the second screw conveying member is located in the outer shell, one end of the second screw conveying member is located in the first buffer member, the second driving member is arranged on the top outer wall of the shell, and the output end of the second driving member is connected to the other end of the second screw conveying member.

[0018] Preferably, the second spiral conveying element is located between the feed inlet and the first filter element.

[0019] Preferably, the second buffer assembly further comprises a gravity sensor, wherein the gravity sensor is disposed between the elastic member and the fixing member, and the gravity sensor is used to monitor the tensile force of the elastic member;

[0020] The first pulverizing mechanism further includes a controller and a driver, wherein the controller is connected to the driver, and the driver is respectively connected to the first driving member and the second driving member, and the gravity sensor is communicatively connected to the controller;

[0021] When the gravity sensor detects that the stretching force of the elastic member is less than a preset threshold, the controller is used to control the rotation speed of the first driving member to be greater than the rotation speed of the second driving member. When the gravity sensor detects that the stretching force of the elastic member is greater than or equal to the preset threshold, the controller is used to control the rotation speed of the first driving member to be less than or equal to the rotation speed of the second driving member.

[0022] A second aspect of the present application provides a Chinese herbal medicine pulverizer, characterized in that it includes the above-mentioned Chinese herbal medicine multi-stage pulverization component.

[0023] The beneficial effects of the present invention are at least one of the following:

[0024] The first conveying assembly enables the material that fails to pass through the first filter to be promptly conveyed to the second crushing mechanism, thereby avoiding the long-term accumulation of the material in the first buffer. The second crushing mechanism can continuously receive the material for crushing, thereby reducing the occurrence of its idle state and improving the overall crushing efficiency.

[0025] The first conveying assembly conveys the material laterally, and the material is dispersedly guided to the discharge piece, thereby preventing the filter holes from being blocked and ensuring the normal operation of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view cross-sectional structural schematic diagram of the first embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the front cross-sectional structure of the second embodiment of the present invention;

[0028] Figure 3 It is a front view cross-sectional structural schematic diagram of the third embodiment of the present invention;

[0029] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 5 It is a schematic diagram of the front cross-sectional structure of the fourth embodiment of the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0032] Figure numerals: 1. Shell; 2. First crushing mechanism; 21. First crushing assembly; 22. First buffer member; 221. First filter member; 23. First conveying assembly; 231. First driving member; 232. First spiral conveying member; 24. Discharging member; 241. Feed inlet; 242. Tube body; 243. Discharging port; 25. Second conveying assembly; 251. Shell; 252. Second driving member; 253. Second spiral conveying member; 26. Second buffer assembly; 261. Fixed member; 262. Movable member; 263. Elastic member; 264. Second filter member; 265. Gravity sensor. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1:

[0035] Considering that multi-stage crushing is a key process to ensure uniform herbal particles and improve efficacy. However, since the particle size of Chinese herbal materials is large and uneven in the original state, the primary crusher needs to spend a long time to crush the herbal materials to a particle size suitable for secondary crushing during the initial crushing process. During this long primary crushing and filtering time, the secondary crusher is idle because it fails to receive enough materials in time. If the large-particle Chinese herbal materials are directly put into the multi-stage crushing components at the same time, these components may not be able to crush them effectively because the secondary crushing components are usually designed for smaller particle sizes after initial crushing.

[0036] In order to solve the above problems, Figure 1 As shown, a multi-stage crushing assembly for Chinese herbal medicine includes a shell 1, and the shell 1 is provided with a top opening; a first crushing mechanism 2, the first crushing mechanism is arranged in the shell 1, and the first crushing mechanism 2 includes: a first crushing assembly 21, and the first crushing assembly 21 is located below the top opening of the shell 1. For reference, the Chinese herbal medicine material falls from the top opening of the shell 1 onto the first crushing assembly 21, and the first crushing assembly 21 starts to crush the Chinese herbal medicine material for the first time. Specifically, the first crushing assembly 21 can be a common structure in the prior art, for example: the first crushing assembly 21 can include high-speed rotating tools, which can be blades, blade arrays or hammer-type tools. These tools are mounted on a high-speed rotating shaft, and the shaft is driven by a motor or other power source. Thereby, the preliminary crushing of the Chinese herbal medicine is achieved.

[0037] The first buffer 22 is located below the first crushing component 21. The top opening of the first buffer 22 is provided, and the bottom of the first buffer 22 is provided with a first filter 221; the first filter 221 is used to filter materials. For reference, the material crushed by the first crushing component 21 falls on the first filter 221 through the top opening of the first buffer 22, and the material that meets the filtering conditions falls through the first filter 221. It should be noted that for some Chinese herbal medicines, especially fibrous Chinese herbal medicines, the first crushing may not reach the expected crushing fineness, so after the first crushing, some Chinese herbal medicines that do not reach the expected crushing fineness will remain on the first filter 221, and this part of the Chinese herbal medicines will block part of the filter holes of the first filter 221, resulting in the Chinese herbal medicines that reach the expected crushing fineness cannot be filtered in time.

[0038] A first conveying component 23, the first conveying component 23 is connected to the first buffer 22, and the first conveying component 23 is used to convey the material in the first buffer 22 to the side of the first filter 221; a discharge member 24, the two ends of the discharge member 24 are open, one end of the discharge member 24 is located on one side of the first filter 221, and one end of the discharge member 24 is connected to the bottom of the first buffer 22. A second crushing mechanism 3, the second crushing mechanism 3 is located below the first filter 221 and the discharge member 24, and the second crushing mechanism 3 is used to crush the material falling from the first filter 221 and the discharge member 24. For reference, the second crushing mechanism 3 may include a crushing barrel, the crushing barrel is fixed in the housing 1, the crushing barrel is located below the discharge member 24, and the bottom wall of the crushing barrel is provided with a circular opening, the inside of the circular opening is fixedly connected to a circular plate through two cross bars, a motor is fixed to the lower surface of the circular plate, the top drive shaft of the motor passes through the circular plate and is fixedly connected to a crushing knife, and a filter is fixed between the inner wall of the circular opening and the circular plate.

[0039] Among them, after the first pulverizing component 21 performs preliminary pulverization on the Chinese herbal medicine, the material falls into the first buffer 22 and falls on the first filter 221 through the top opening of the first buffer 22. Since the first pulverization may not make all the materials reach the expected pulverization fineness, especially for fibrous Chinese medicine, some larger material particles will remain on the first filter 221 and may block some filter holes. At this time, the first conveying component 23 starts to work. It is located inside the first buffer 22 and connected to the first buffer 22. The first conveying component 23 can be a screw conveyor, a vibrating conveyor, a scraper conveyor or other suitable conveying mechanism. These conveying mechanisms push the material remaining in the first buffer 22 or on the first filter 221 to one side through rotation, vibration or scraper movement, so that it enters the discharge member 24. The material is then conveyed to the second pulverizing mechanism 3 through the opening of the discharge member 24 for further pulverization.

[0040] The first conveying assembly 23 enables the material that fails to pass through the first filter element 221 to be promptly conveyed to the second pulverizing mechanism 3, thereby avoiding the long-term accumulation of the material in the first buffer element 22. In this way, the second pulverizing mechanism 3 can continuously receive the material for pulverization, thereby improving the overall pulverization efficiency. The operation of the first conveying assembly 23 can reduce the accumulation and clogging of the material on the first filter element 221. Through lateral conveying, the material is dispersedly guided to the discharge element 24, thereby avoiding excessive clogging of the filter holes, ensuring the normal operation of the filter element, and promptly conveying the material that fails to pass through the first filter element 221 from the first buffer element 22 to the discharge element 24, and then entering the second pulverizing mechanism 3. This continuous material conveying ensures that the second pulverizing mechanism 3 can continuously receive sufficient material for pulverization, thereby reducing the occurrence of its idle state.

[0041] Compared with adding the original Chinese herbal material to the first crushing mechanism and the second crushing mechanism at the same time, the advantage of this solution is that the material is first crushed by the first crushing mechanism, which reduces the difficulty of subsequent crushing, improves the crushing efficiency of the second crushing mechanism, and reduces the wear of the cutter or other components in the second crushing mechanism.

[0042] Embodiment 2:

[0043] On the basis of Example 1, considering that the essence of the second crushing mechanism is to crush the Chinese herbal materials that meet the crushing particle size of the first crushing mechanism, if the second crushing mechanism is used to crush the Chinese herbal materials that do not meet the crushing particle size of the first crushing mechanism for a long time, in large quantities and continuously, it may cause the Chinese herbal materials that do not meet the crushing particle size of the first crushing mechanism to increase in the second crushing mechanism, affecting the crushing progress of the Chinese herbal materials that meet the crushing particle size of the first crushing mechanism by the second crushing mechanism.

[0044] In order to solve this technical problem, Figure 2 As shown, the first pulverizing mechanism 2 further includes a second conveying assembly 25, which is connected to the first buffer 22 and is used to convey the material in the first buffer 22 to the top of the first pulverizing assembly 21. The second conveying assembly 25 conveys this part of the material in the first buffer 22 to the top of the first pulverizing assembly 21, and the material is gradually lifted to the top of the first pulverizing assembly 21, ensuring that the material can be pulverized by the first pulverizing assembly 21 again, and the material conveyed by the second conveying assembly 25 falls into the first pulverizing assembly 21 again for pulverization. At this time, since the material has been initially pulverized and buffered, the material entering the first pulverizing assembly 21 again is more likely to meet the expected pulverization particle size. If the material still fails to meet the pulverization requirements, it will enter the first buffer 22 again, and may be conveyed back to the first pulverizing assembly 21 by the second conveying assembly 25 for recycling. Through the recycling treatment of the second conveying assembly 25, the pressure of the second pulverizing mechanism to process the material that does not meet the particle size requirements can be effectively reduced, thereby improving the pulverizing efficiency of the second pulverizing mechanism. It also reduces the accumulation of materials that do not meet the particle size requirements in the second pulverizing mechanism.

[0045] Embodiment three:

[0046] On the basis of Example 2, considering that after the introduction of the second conveying component, there will be more and more Chinese herbal materials that meet the grinding particle size of the first grinding mechanism, and more and more Chinese herbal materials will enter the second grinding mechanism through the first filter element. At this time, the second grinding mechanism should return to its essence. The second grinding mechanism should stop grinding the Chinese herbal materials that do not meet the grinding particle size of the first grinding mechanism in time, and focus on grinding the Chinese herbal materials that meet the grinding particle size of the first grinding mechanism.

[0047] Therefore, if Figure 3 As shown, the first pulverizing mechanism 2 further includes a second buffer component 26 , and the second buffer component 26 is disposed below the first buffer component 22 .

[0048] like Figure 4 As shown, the second buffer component 26 includes a fixed member 261, a movable member 262, an elastic member 263 and a second filter member 264. The top of the fixed member 261 is connected to the bottom of the first buffer member 22. The movable member 262 is connected to the fixed member 261 through the elastic member 263. The second filter member 264 is connected to the side wall of the movable member 262. The second filter member 264 is located below the first filter member 221. The second filter member 264 has the same filtration particle size as the first filter member 221; the filtration area of ​​the second filter member 264 is smaller than that of the first filter member 221.

[0049] like Figure 4As shown, for reference, the interior of the fixing member 261 is hollow, the bottom of the fixing member 261 is open, the elastic member 263 is located inside the fixing member 261, one end of the elastic member 263 is connected to the top inner wall of the fixing member 261, and the other end of the one end of the elastic member 263 is connected to the movable member 262. The outer wall of the fixing member 261 is provided with an inclined plate, the higher end of the inclined plate is fixedly connected to the outer wall of the fixing member 261, and the lower end of the inclined plate is arranged on the side of the second filter 264, so that the material falling from the first filter 221 will roll onto the first filter 221 through the inclined plate. Specifically, the fixing member 261 can still be a fixed tube, the elastic member 263 can be a spring, and the movable member 262 can be a baffle.

[0050] The discharge member 24 includes a feed port 241, a tube body 242 and a discharge port 243, and the feed port 241, the tube body 242 and the discharge port 243 are connected in sequence. The top of the feed port 241 is connected to the bottom of the first buffer member 22, and the discharge port 243 is located on one side of the movable member 262. When the elastic member 263 is stretched to a preset length, the movable member 262 is used to block the discharge port 243.

[0051] In this embodiment, after the introduction of the second conveying component, more and more Chinese herbal medicine materials that meet the pulverizing size of the first pulverizing mechanism will be produced, and more and more materials will pass through the first filter element and fall on the second filter element 264. Since the filtering area of ​​the second filter element 264 is smaller than that of the first filter element 221, the filtering speed of the second filter element 264 is lower than the falling speed of the material, and the material will be appropriately accumulated in the second filter element 264. At this time, the weight of the material in the second filter element 264 increases, and the second filter element 264 drives the movable part 262 to move downward, and the elastic part 263 stretches. When the elastic part 263 is stretched to a preset length, the preset length is the maximum pull rope length of the elastic part 263. At this time, the movable part 262 just blocks the discharge port 243, and the Chinese herbal medicine materials that do not meet the pulverizing size of the first pulverizing mechanism cannot enter the second pulverizing mechanism 3 from the discharge port 243. The second pulverizing mechanism 3 can fully crush the Chinese herbal medicine materials that meet the pulverizing size of the first pulverizing mechanism.

[0052] Embodiment 4:

[0053] On the basis of Example 3, considering that after the movable part 262 blocks the discharge port 243, if the first conveying component 23 is still conveying Chinese herbal materials that do not meet the grinding particle size of the first grinding mechanism to the discharge part 24, the Chinese herbal materials that do not meet the grinding particle size of the first grinding mechanism will accumulate in the discharge part 24.

[0054] In order to solve this technical problem, Figure 5As shown, the first conveying assembly 23 includes a first driving member 231 and a first screw conveying member 232, the first screw conveying member 232 is located in the first buffer member 22, the first driving member 231 is fixed to the outer side wall of the housing 1, and the output end of the first driving member 231 is connected to the first screw conveying member 232. The second conveying assembly 25 includes a shell 251, a second driving member 252 and a second screw conveying member 253, one end of the shell 251 is connected to the first buffer member 22, the other end of the shell 251 is connected to the inner wall of the housing, the second screw conveying member 253 is located in the shell 251, one end of the second screw conveying member 253 is located in the first buffer member 22, the second driving member 252 is arranged on the top outer side wall of the housing 1, and the output end of the second driving member 252 is connected to the other end of the second screw conveying member 253. For reference, the first driving member and the second driving member are motors, and the first bolt conveying member and the second screw conveying member are auger.

[0055] The second screw conveying member 253 is located between the feed inlet 241 and the first filter element 221 , that is, the material conveyed by the first screw conveying member 232 first passes through the second screw conveying member 253 and then passes through the feed inlet 241 .

[0056] like Figure 6 As shown, the second buffer assembly 26 also includes a gravity sensor 265, which is arranged between the elastic member 263 and the fixing member 261, and is used to monitor the tensile force of the elastic member 263; the first crushing mechanism 2 also includes a controller and a driver, the controller is connected to the driver, the driver is respectively connected to the first driving member 231 and the second driving member 252, and the gravity sensor 265 is communicatively connected to the controller.

[0057] When the gravity sensor 265 monitors that the stretching force of the elastic member 263 is less than a preset threshold, the controller is used to control the rotation speed of the first driving member 231 to be greater than the rotation speed of the second driving member 252. When the gravity sensor 265 monitors that the stretching force of the elastic member 263 is greater than or equal to the preset threshold, the controller is used to control the rotation speed of the first driving member 231 to be less than or equal to the rotation speed of the second driving member 252.

[0058] In this embodiment, when the gravity sensor 265 detects that the stretching force of the elastic member 263 reaches a preset threshold, it indicates that a large amount of material has accumulated on the second filter element 264. At this time, the elastic member 263 is at its maximum stretching length, and the movable member 262 blocks the discharge port 243 to prevent materials that do not meet the particle size requirements from entering the second crushing mechanism. At this time, the controller controls the rotation speed of the first driving member 231 to be less than or equal to the rotation speed of the second driving member 252, or increases the rotation speed of the second driving member 252 to be greater than or equal to the rotation speed of the first driving member 231, increases the conveying capacity of the second spiral conveyor 253, and lifts all the materials passing through the second spiral conveyor 253 to prevent the materials from passing through the second spiral conveyor 253 into the feed port 241 of the collecting member 24. When the tensile force is less than the preset threshold value, it means that the material accumulation on the second filter element 264 is small, and the second crushing mechanism has sufficient capacity to crush the Chinese herbal medicine materials that do not meet the crushing particle size of the first crushing mechanism. At this time, the controller will control the rotation speed of the first driving member 231 to be greater than the rotation speed of the second driving member 252. At this time, the second spiral conveyor 253 cannot lift all the passing materials, and some of the materials enter the feed port 241 of the collecting member 24 and then enter the second crushing mechanism 3 for crushing.

[0059] Embodiment 5 provides a Chinese herbal medicine grinder, which includes the above-mentioned Chinese herbal medicine multi-stage grinding assembly. The feeding mechanism and the discharging mechanism of the Chinese herbal medicine grinder are existing technologies and this application does not make any improvements.

[0060] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A Chinese herbal medicine multi-stage crushing assembly, characterized in that: include: A housing (1), wherein the top of the housing (1) is opened; A first pulverizing mechanism (2), wherein the first pulverizing mechanism is arranged in the housing (1), and the first pulverizing mechanism (2) comprises: A first crushing assembly (21), the first crushing assembly (21) being located below the top opening of the shell (1); A first buffer (22), the first buffer (22) is located below the first pulverizing assembly (21), the top of the first buffer (22) is open, and the bottom of the first buffer (22) is provided with a first filter (221); the first filter (221) is used to filter materials; A first conveying component (23), wherein the first conveying component (23) is connected to the first buffer component (22), and the first conveying component (23) is used to convey the material in the first buffer component (22) to the side of the first filter component (221); a discharge member (24), wherein both ends of the discharge member (24) are open, one end of the discharge member (24) is located on one side of the first filter member (221), and one end of the discharge member (24) is connected to the bottom of the first buffer member (22); A second pulverizing mechanism (3), the second pulverizing mechanism (3) is located below the first filter element (221) and the discharge element (24), and the second pulverizing mechanism (3) is used to pulverize materials falling from the first filter element (221) and the discharge element (24).

2. The Chinese herbal medicine multi-stage crushing assembly according to claim 1, characterized in that: The first pulverizing mechanism (2) further comprises a second conveying assembly (25), wherein the second conveying assembly (25) is connected to the first buffer (22), and the second conveying assembly (25) is used to convey the material in the first buffer (22) to the top of the first pulverizing assembly (21).

3. The Chinese herbal medicine multi-stage crushing assembly according to claim 2, characterized in that: The first pulverizing mechanism (2) further comprises a second buffer component (26), wherein the second buffer component (26) is arranged below the first buffer component (22); The second buffer component (26) comprises a fixed component (261), a movable component (262), an elastic component (263) and a second filter component (264); the top of the fixed component (261) is connected to the bottom of the first buffer component (22); the movable component (262) is connected to the fixed component (261) via the elastic component (263); the second filter component (264) is connected to the side wall of the movable component (262); the second filter component (264) is located below the first filter component (221); and the second filter component (264) and the first filter component (221) have the same filtering particle diameter; The discharge member (24) comprises a feed port (241), a tube body (242) and a discharge port (243), the feed port (241), the tube body (242) and the discharge port (243) are connected in sequence, the top of the feed port (241) is connected to the bottom of the first buffer member (22), the discharge port (243) is located on one side of the movable member (262), and when the elastic member (263) is stretched to a preset length, the movable member (262) is used to block the discharge port (243).

4. The Chinese herbal medicine multi-stage crushing assembly according to claim 3, characterized in that: The first conveying component (23) comprises a first driving member (231) and a first spiral conveying member (232); the first spiral conveying member (232) is located in the first buffer member (22); the first driving member (231) is fixed to the outer wall of the shell (1); and the output end of the first driving member (231) is connected to the first spiral conveying member (232).

5. The Chinese herbal medicine multi-stage crushing assembly according to claim 4, characterized in that: The second conveying component (25) comprises a shell (251), a second driving member (252) and a second spiral conveying member (253); one end of the shell (251) is connected to the first buffer member (22); the other end of the shell (251) is connected to the inner wall of the shell; the second spiral conveying member (253) is located in the shell (251); one end of the second spiral conveying member (253) is located in the first buffer member (22); the second driving member (252) is arranged on the top outer wall of the shell (1); and the output end of the second driving member (252) is connected to the other end of the second spiral conveying member (253).

6. The Chinese herbal medicine multi-stage crushing assembly according to claim 5, characterized in that: The second spiral conveying element (253) is located between the feed inlet (241) and the first filter element (221).

7. The Chinese herbal medicine multi-stage crushing assembly according to claim 5, characterized in that: The second buffer component (26) further comprises a gravity sensor (265), wherein the gravity sensor (265) is arranged between the elastic member (263) and the fixing member (261), and the gravity sensor (265) is used to monitor the tensile force of the elastic member (263); The first pulverizing mechanism (2) further comprises a controller and a driver, the controller is connected to the driver, the driver is respectively connected to the first driving member (231) and the second driving member (252), and the gravity sensor (265) is communicatively connected to the controller; When the gravity sensor (265) detects that the tensile force of the elastic member (263) is less than a preset threshold, the controller is used to control the rotation speed of the first driving member (231) to be greater than the rotation speed of the second driving member (252); when the gravity sensor (265) detects that the tensile force of the elastic member (263) is greater than or equal to the preset threshold, the controller is used to control the rotation speed of the first driving member (231) to be less than or equal to the rotation speed of the second driving member (252).

8. A Chinese herbal medicine pulverizer, characterized in that: It comprises the Chinese herbal medicine multi-stage crushing component as described in any one of claims 1-7.

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