Multi-stage traditional Chinese medicine dispensing device

Abstract

The utility model discloses a multistage traditional Chinese medicine dispensing device which comprises a feeding hopper and a first dispensing cylinder arranged at the bottom of the feeding hopper, a first dispensing screw is arranged in the first dispensing cylinder, and a first discharging port is formed in one end of the first dispensing cylinder; the first discharging port is connected with a second adjusting cylinder through a discharging channel, a second adjusting screw rod is arranged in the second adjusting cylinder, and a second discharging port is formed in one end of the second adjusting cylinder; wherein the diameter of the second dispensing cylinder is smaller than that of the first dispensing cylinder, and the rotating speed of the second dispensing screw rod is larger than that of the first dispensing screw rod. According to the utility model, the materials are transmitted by the first dispensing screw and the second dispensing screw in a relay manner, and the second dispensing screw is used for correcting the problem that the discharging amount is suddenly increased possibly in the dispensing process of the first dispensing screw, so that higher dispensing and discharging precision is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of traditional Chinese medicine production, in particular to a multi-stage traditional Chinese medicine dispensing device. Background Art

[0002] Traditional Chinese medicine mainly includes herbal medicine, animal medicine and mineral medicine. It refers to natural medicines and their processed substitutes that are guided by the theory of traditional Chinese medicine, have a unique theoretical system and application form, and are used to prevent and treat diseases and have rehabilitation and health care effects. In traditional Chinese medicine pharmacies, the manual processing of Chinese medicine prescriptions is not only cumbersome, complicated and time-consuming, but also has disadvantages such as low precision in picking medicines and high labor intensity.

[0003] In order to improve the various problems existing in the process of dispensing Chinese medicine prescriptions, there are many screws on the market for dispensing and discharging. However, the traditional screw dispensing and discharging has the following problems:

[0004] When the discharge volume is large, the material is prone to collapse at the discharge port, resulting in a sudden increase in the discharge volume, over-adjustment of the material, and low discharge adjustment accuracy. This is especially true for the adjustment of large particle materials, as the mass of a single large particle drug is large, resulting in greater adjustment errors. Utility Model Content

[0005] The utility model aims to provide a multi-stage Chinese medicine dispensing device to solve the technical problem in the prior art that when dispensing by traditional screws, the dispensing port is prone to collapse, resulting in low dispensing precision.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A multi-stage Chinese medicine dispensing device comprises a feeding hopper and a first dispensing barrel arranged at the bottom of the feeding hopper, a first dispensing screw is arranged in the first dispensing barrel, and one end of the first dispensing barrel is arranged as a first dispensing port;

[0008] The first discharge port is connected to the second adjusting barrel through a material drop channel, a second adjusting screw is arranged in the second adjusting barrel, and one end of the second adjusting barrel is arranged as the second discharge port;

[0009] Wherein, the diameter of the second adjusting barrel is smaller than the diameter of the first adjusting barrel, and the rotation speed of the second adjusting screw is greater than that of the first adjusting screw.

[0010] As a preferred solution of the present invention, the ratio between the rotation speed of the second adjusting screw and the rotation speed of the first adjusting screw is set to meet the following conditions:

[0011] The discharge amount of the second adjusting cylinder per unit time is at least greater than or equal to the discharge amount of the first adjusting cylinder per unit time.

[0012] As a preferred solution of the present invention, the second adjusting barrel is arranged parallel to the bottom of the first adjusting barrel, the second feed port of the second adjusting barrel is located at the bottom of the first discharge port, and the dropping channel is arranged between the first discharge port and the second feed port.

[0013] As a preferred solution of the utility model, the other end of the first adjusting screw is externally connected to a first motor;

[0014] One end of the second adjusting screw is movably connected to the end of the second adjusting barrel close to the second feed port, and the other end is externally connected to the second motor.

[0015] As a preferred solution of the utility model, one end of the second adjusting screw close to the second motor is set as a rod without spiral blades, and a downwardly opening discharge chute is set at the second discharge port, and the discharge chute is located at the bottom end of the rod.

[0016] As a preferred solution of the present invention, the feed hopper, the first adjusting cylinder and the second adjusting cylinder are arranged in sequence in the vertical direction.

[0017] As a preferred solution of the present utility model, the first motor is arranged on a side outside the first adjusting barrel, and the first motor is connected to the end of the first adjusting screw through a first transmission assembly.

[0018] The second motor is arranged on a side outside the second adjusting cylinder, and the second motor is connected to the end of the second adjusting screw through a second transmission assembly;

[0019] The first motor and the second motor are respectively located on both sides of the feeding hopper.

[0020] As a preferred solution of the utility model, an anti-stuck component is also provided at the first discharge port, and the anti-stuck component includes a notch formed at a local position on the spiral blade of the first adjusting screw, and the notch is located at the position of the first discharge port. The notch is formed inwardly from the outer edge of the spiral blade to expand the distance between the outer edge of the spiral blade and the side wall of the discharge port.

[0021] As a preferred solution of the utility model, an elastic blade is connected to the notch, and the elastic blade is used to fill the missing part of the spiral blade at the notch.

[0022] As a preferred solution of the utility model, a feeding cylinder is connected at the first discharge port, the end of the adjusting screw extends to the discharge position of the feeding cylinder, and a material dropping channel is formed between the feeding cylinder and the second adjusting cylinder;

[0023] A material crushing piece is arranged on an opening of one end of the feeding cylinder close to the first discharge port, and the material crushing piece faces the material on the first discharge port side and can hinder the rotation of the material to achieve the purpose of crushing.

[0024] As a preferred solution of the utility model, the material crushing piece is a tooth-shaped structure at least partially formed at the opening of the feeding cylinder;

[0025] Wherein, the tooth-like structure at least has a tip facing the first discharge port, and / or the tooth-like structure at least has a tooth edge protruding toward the center of the first discharge port.

[0026] As a preferred solution of the utility model, a limiting structure is provided on the inner wall of the feeding cylinder, and the limiting structure has an obstructive effect at least on the circumferential rotation of the feeding cylinder to limit the rotation of the material in the feeding cylinder.

[0027] As a preferred solution of the present utility model, the limiting structure is at least one pattern formed on the inner wall of the feeding cylinder;

[0028] Wherein, the texture is any one of a concave structure or a convex structure or a combination of the two;

[0029] Wherein, the texture has an inclination along the discharge direction.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] In the utility model, the material is transmitted by the first adjusting screw and the second adjusting screw in relay, and the second adjusting screw is used to correct the problem of sudden increase in discharge volume that may occur during the adjustment process of the first adjusting screw, thereby achieving higher adjustment and discharge accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0033] Figure 1 A partial cross-sectional structural schematic diagram of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0034] Figure 2 An overall axonometric structural diagram of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0035] Figure 3 An overall cross-sectional structural diagram of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0036] Figure 4 A schematic diagram of the front view structure of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0037] Figure 5 A side view structural diagram of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0038] Figure 6 A schematic diagram of the rear perspective structure of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0039] Figure 7 A schematic diagram of the axonometric structure of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0040] Figure 8 A schematic diagram of a top view of a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0041] Fig. 9 A schematic diagram of the structure of a dispensing screw in a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0042] Fig.10 A schematic diagram of the structure of the toothed mechanism and the restriction structure in the multi-stage Chinese medicine dispensing device is provided for the embodiment of the utility model;

[0043] Fig.11 A schematic cross-sectional structure diagram of a first dispensing cylinder in a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0044] Fig.12 A schematic diagram of the structure of elastic blades in a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0045] Fig.13 A schematic diagram of the appearance structure of a crushing component in a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0046] Fig.14 A structural schematic diagram of a restriction structure in a multi-stage Chinese medicine dispensing device is provided for an embodiment of the utility model;

[0047] The numbers in the figure represent the following:

[0048] 1 Feed hopper;

[0049] 2 first adjusting cylinder, 2-1 first discharge port;

[0050] 3 first adjusting screw, 3-1 spiral blade, 3-2 notch, 3-3 elastic blade;

[0051] 4 first motor, 5 first transmission assembly;

[0052] 6 second adjusting cylinder, 6-1 feeding channel;

[0053] 7 second adjusting screw, 8 second motor, 9 second transmission assembly, 10 second discharge port;

[0054] 11 feeding cylinder, 11-1 crushing member, 11-2 limiting structure. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] like Figure 1-6 As shown, the utility model provides a multi-stage Chinese medicine dispensing device, including a feed hopper 1 and a first dispensing barrel 2 arranged at the bottom of the feed hopper 1, a first dispensing screw 5 is arranged in the first dispensing barrel 2, and one end of the first dispensing barrel 2 is arranged as a first discharge port 2-1.

[0057] The first discharge port 2 - 1 is connected to the second adjusting barrel 6 through a material dropping channel 6 - 1 . A second adjusting screw 7 is arranged in the second adjusting barrel 6 . One end of the second adjusting barrel 6 is arranged as a second discharge port 10 .

[0058] The diameter of the second adjusting barrel 6 is smaller than that of the first adjusting barrel 2 , and the rotation speed of the second adjusting screw 7 is greater than that of the first adjusting screw 3 .

[0059] When in use, the material in the feed hopper 1 falls into the first adjusting barrel 2 under the action of gravity, and the first adjusting screw 3 in the first adjusting barrel 2 rotates to transport the material to the first discharge port 2-1.

[0060] When the materials at the first discharging outlet 2 - 1 suddenly increase due to collapse, these materials enter the second adjusting cylinder 6 through the feeding channel 6 - 1 under the action of gravity.

[0061] Since the diameter of the second adjusting barrel 6 is smaller than that of the first adjusting barrel 2, the second adjusting screw 7 can be more precise when conveying materials. At the same time, the rotation speed of the second adjusting screw 7 is higher than that of the first adjusting screw 3, which can disperse the suddenly increased over-adjusted material discharged by the first-level adjusting screw 3, reduce the amount of material discharged by each rotation of the second-level adjusting screw 7, and thus increase the adjustment accuracy.

[0062] The material adjusted by the second adjusting screw 7 is finally discharged through the second discharge port 10. Since the second adjusting screw 7 performs secondary adjustment on the material, the problem of sudden increase in discharge volume that may occur during the adjustment process of the first adjusting screw 3 is corrected, thereby achieving higher adjustment accuracy.

[0063] And in this process, the first adjusting screw 3 is responsible for the initial adjustment, which can handle larger material fluctuations and undertakes most of the material transportation and adjustment work. The second adjusting screw 7 performs fine adjustment based on the adjustment of the first adjusting screw 3, thereby greatly improving the accuracy of the final discharge. This division of labor and cooperation can reduce the load of a single motor, extend the service life of the equipment, and reduce the equipment maintenance cost. Compared with using a single screw alone, it may be inefficient when processing a large amount of material and difficult to cope with large fluctuations.

[0064] In actual application scenarios, the Nth dispensing head can be connected below the second dispensing cylinder 6 as needed to further balance the material discharging efficiency and accuracy.

[0065] In this embodiment, the ratio between the rotation speed of the second adjusting screw 7 and the rotation speed of the first adjusting screw 3 is set to meet the following conditions:

[0066] The discharge amount of the second adjusting barrel 6 per unit time is at least greater than or equal to the discharge amount of the first adjusting barrel 2 per unit time, so that the material is smoothly transferred between the first adjusting screw 3 and the second adjusting screw 7 to avoid material accumulation.

[0067] In this embodiment, the second adjusting cylinder 6 is arranged parallel to the bottom of the first adjusting cylinder 2, the second feed port of the second adjusting cylinder 6 is located at the bottom of the first discharge port 2-1, and the drop channel 6-1 is arranged between the first discharge port 2-1 and the second feed port.

[0068] Thereby, the material discharged from the first adjusting screw 3 can directly fall into the feeding port of the second adjusting screw 7 under the action of gravity.

[0069] In this embodiment, the other end of the first adjusting screw 3 is externally connected to the first motor 4;

[0070] One end of the second adjusting screw 7 is movably connected to the end of the second adjusting barrel 6 close to the second feed port, and the other end is externally connected to the second motor 8.

[0071] The first motor 4 and the second motor 8 are located at the same end, so as to reduce the size of the device in the length direction.

[0072] In this embodiment, one end of the second adjusting screw 7 close to the second motor 8 is set as a rod portion 7-1 without spiral blades, and a downwardly opening discharge chute is set at the second discharge port 10, and the discharge chute is located at the bottom end of the rod portion 7-1.

[0073] In this embodiment, the feed hopper 1, the first adjusting cylinder 2 and the second adjusting cylinder 6 are arranged in sequence in the vertical direction so that the material can be transferred in sequence among the feed hopper 1, the first adjusting cylinder 2 and the second adjusting cylinder 6 under the action of its own gravity.

[0074] In this embodiment, the first motor 4 is disposed on a side outside the first adjusting barrel 2 , and the first motor 4 is connected to the end of the first adjusting screw 3 through the first transmission assembly 5 .

[0075] The second motor 8 is disposed on a side outside the second adjusting cylinder 6, and the second motor 8 is connected to the end of the second adjusting screw 7 through a second transmission assembly 9;

[0076] The first motor 4 and the second motor 8 are respectively located on both sides of the feed hopper 1, making the overall structure of the equipment more compact and reducing the space occupied by the equipment. This can more effectively save the installation area in the actual production environment, especially when multiple adjusting equipment needs to be arranged.

[0077] The first transmission assembly 5 and the second transmission assembly 9 are synchronous belt mechanisms composed of belts and pulleys.

[0078] Furthermore, the first transmission assembly 5 and the second transmission assembly 9 may also be chain mechanisms or gear mechanisms.

[0079] In this embodiment, the first adjusting screw 3 and the second adjusting screw 7 are arranged parallel to each other, and the discharge end of the first adjusting screw 3 and the feed end of the second adjusting screw 7 are vertically connected through the feed channel 6-1, so that the material discharged from the first adjusting screw 3 can directly fall into the feed port of the second adjusting screw 7 under the action of gravity.

[0080] In order to prevent the material from being stuck at the first discharge port 2-1, in this embodiment, Figure 8 , Fig. 9 and Fig.11As shown, an anti-stuck component is also provided at the first discharge port 2-1, and the anti-stuck component includes a notch 3-2 formed at a local position on the spiral blade 3-1 of the first adjusting screw 3, and the notch 3-2 is located at the position of the first discharge port 2-1. The notch 3-2 is formed inward from the outer edge of the spiral blade 3-1 to expand the distance between the outer edge of the spiral blade 3-1 and the side wall of the discharge port 12-1.

[0081] During operation, the material is poured into the feed hopper 1, and the material pouring position is located away from the first discharge port 2-1, so that the material enters the first discharge port 2-1 after being fully adjusted and transported by the first adjusting screw 3 to complete the adjustment and mixing of the material.

[0082] When the material is driven by the first adjusting screw 3 to enter the first discharge port 2-1, since the outer edge of the spiral blade 3-1 of the first adjusting screw 3 at the first discharge port 2-1 is formed with a notch 3-2, the distance between the outer edge of the spiral blade 3-1 and the side wall of the first discharge port 2-1 is relatively large, and the material can easily pass through the notch 3-2 and be discharged through the first discharge port 2-1, thereby improving the discharge efficiency of the material and preventing the material from accumulating at the first discharge port 2-1 to form a jam.

[0083] Especially for some slightly larger materials put into the feed hopper 1, these materials can also pass through the gap 3-2 and be discharged through the first discharge port 2-1, thereby reducing the risk of material jamming at the first discharge port 2-1.

[0084] The presence of the notch 3-2 on the spiral blade 3-1 increases the distance between the outer edge of the spiral blade 3-1 and the side wall of the first discharge port 2-1. The spiral blade 3-1 has insufficient driving force for small materials at the bottom of the feed hopper 1. In order to clear all the materials in the feed hopper 1, in this embodiment, reference is made to Fig.12 As shown, an elastic blade 3-3 is connected to the notch 3-2, and the elastic blade 3-3 is used to make up for the missing part of the spiral blade 3-1 at the notch 3-2.

[0085] The elastic blade 3-3 is used to restore the distance between the outer edge of the spiral blade 3-1 and the side wall of the first discharge port 2-1, thereby increasing the material conveying capacity of the first adjusting screw 3, so that small materials and powders inside the feed hopper 1 can also be conveyed out by the first adjusting screw 3.

[0086] In addition, the elastic blade 3-3 is made of elastic material and has a certain elastic deformation ability. When material jams at the first discharge port 2-1, the material is stuck between the elastic blade 3-3 and the side wall of the first discharge port 2-1. As the first adjusting screw 3 rotates, the elastic blade 3-3 is forced to deform and resist the jammed material. As the elastic blade 3-3 is driven, the jammed material is pushed into the first discharge port 2-1, thereby reducing the possibility of the material being sheared and jammed by the spiral blade 3-1. When the jammed material disappears, the elastic blade 3-3 automatically recovers under the action of its own elastic force.

[0087] In order to prevent the large volume of material from being stuck at the first discharge port 2-1, in this embodiment, the feeding cylinder 11 is connected to the first discharge port 2-1, the end of the adjusting screw 3 extends to the discharge position of the feeding cylinder 11, and the feeding channel 6-1 is between the feeding cylinder 11 and the second adjusting cylinder 6;

[0088] A crushing piece 11 - 1 is provided on an opening of one end of the feeding cylinder 11 close to the first discharge port 2 - 1 . The crushing piece 11 - 1 faces the material on the side of the first discharge port 2 - 1 and can hinder the rotation of the material to achieve the purpose of crushing.

[0089] When the material cannot pass through the gap 3-2 and is stuck at the first discharge port 2-1, as the first adjusting screw 3 drives the material, the material rotates relative to the crushing member 11-1, and the crushing member 11-1 hinders the rotation of the material and rubs and collides with the material, thereby causing the material to be crushed into smaller materials until the material can pass through the gap 3-2 and through the first discharge port 2-1, thereby reducing the risk of the material being stuck at the first discharge port 2-1.

[0090] In order to enable the crushing element 11-1 to achieve the above-mentioned crushing effect on the material, in this embodiment, refer to Fig.10 As shown, the specific implementation of the crushing member 11-1 is:

[0091] The crushing member 11-1 is a tooth-like structure at least partially formed at the opening of the feed barrel 11, and the tooth tip of the tooth-like structure faces the material on the side of the first discharge port 2-1. When the material is stuck at the first discharge port 2-1, the material rotates, and the material and the tooth tip of the tooth-like structure rub and collide with each other, and the tooth tip of the tooth structure continuously scrapes the surface of the material, thereby crushing the material into smaller materials, so that the material can pass through the first discharge port 2-1 through the gap 3-2 and enter the feed barrel 11.

[0092] In this embodiment, the tooth-like structure at least has a tip facing the first discharge port 2 - 1 , and / or the tooth-like structure at least has a tooth edge protruding toward the center of the first discharge port 2 - 1 .

[0093] Among them, the tooth edge of the toothed structure facing the center of the first discharge port 2-1 can crush the material stuck between the spiral blade 3-1 and the inner wall of the first discharge port 2-1, so that the stuck material can be crushed at multiple angles, further reducing the risk of material getting stuck at the first discharge port 2-1.

[0094] When the material is transported over a short distance in the conveying barrel 11, if the friction between the material and the inner wall of the conveying barrel 11 is insufficient, the material will spin in the conveying barrel 11. In order to solve the above problem, in this embodiment:

[0095] A limiting structure 11 - 2 is provided on the inner wall of the feeding barrel 11 , which has an obstructive effect on at least the circumferential rotation of the feeding barrel 11 to limit the rotation of the material in the feeding barrel 11 , so that the material moves along the length direction of the feeding barrel 11 under the drive of the first adjusting screw 3 .

[0096] In this embodiment, the limiting structure 11-2 is at least one groove formed on the inner wall of the feed barrel 11, and the groove is arranged circumferentially along the inner wall of the feed barrel 11. Driven by the first adjusting screw 3, when the material moves along the length direction of the feed barrel 11, the material continuously crosses the groove, thereby increasing the friction between the material and the inner wall of the feed barrel 11 and preventing the material from spinning in the feed barrel 11.

[0097] In this embodiment, the texture is any one of a concave structure or a convex structure or a combination of both. When the material passes through the texture of the concave structure or the convex structure, the contact area between the inner wall of the feed barrel 11 and the material is increased by the concave structure or the convex structure, and there is a pause when the material passes through the concave structure or the convex structure to avoid the material from spinning and flowing back.

[0098] In this embodiment, the texture has an inclination along the discharge direction. When the first adjusting screw 3 drives the material to move in the feed barrel 11, the friction between the material and the inner wall of the feed barrel 11 is increased by the texture to avoid the synchronous rotation of the material and the first adjusting screw 3, so that the material is driven by the first adjusting screw 3 to continuously move in a straight line and be transported to the outside of the feed barrel 11.

[0099] In this embodiment, refer to Fig.12 and Fig.13 As shown, the texture layout can be straight texture in the opposite direction of the length of the feed barrel 11, or it can be arc-shaped texture along the length of the feed barrel 11. In actual use, the texture is not limited to the above two types. In summary, based on the shape of the material in the feed hopper 1, the texture can increase the friction between the material and the inner wall of the feed barrel 11.

[0100] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A multi-stage Chinese medicine dispensing device, characterized in that: It comprises a feed hopper (1) and a first adjusting barrel (2) arranged at the bottom of the feed hopper (1), a first adjusting screw (3) is arranged in the first adjusting barrel (2), and one end of the first adjusting barrel (2) is arranged as a first discharge port (2-1); The first discharge port (2-1) is connected to the second adjustment barrel (6) via a material drop channel (6-1), a second adjustment screw (7) is arranged in the second adjustment barrel (6), and one end of the second adjustment barrel (6) is arranged as a second discharge port (10); The diameter of the second adjusting barrel (6) is smaller than the diameter of the first adjusting barrel (2), and the rotation speed of the second adjusting screw (7) is greater than that of the first adjusting screw (3).

2. A multi-stage Chinese medicine dispensing device according to claim 1, characterized in that: The ratio between the rotation speed of the second adjusting screw (7) and the rotation speed of the first adjusting screw (3) is set to meet the following conditions: The material output of the second adjusting cylinder (6) per unit time is greater than or equal to the material output of the first adjusting cylinder (2) per unit time.

3. A multi-stage Chinese medicine dispensing device according to claim 1, characterized in that: The second adjusting barrel (6) is arranged parallel to the bottom of the first adjusting barrel (2), the second feed port of the second adjusting barrel (6) is located at the bottom of the first discharge port (2-1), and the drop channel (6-1) is arranged between the first discharge port (2-1) and the second feed port.

4. A multi-stage Chinese medicine dispensing device according to claim 3, characterized in that: The other end of the first adjusting screw (3) is externally connected to a first motor (4); One end of the second adjusting screw (7) is movably connected to the end of the second adjusting barrel (6) close to the second feed port, and the other end is externally connected to a second motor (8).

5. A multi-stage Chinese medicine dispensing device according to claim 4, characterized in that: One end of the second adjusting screw (7) close to the second motor (8) is provided as a rod portion (7-1) without spiral blades, and a downwardly opening discharge chute is provided at the second discharge port (10), the discharge chute being located at the bottom end of the rod portion (7-1).

6. A multi-stage Chinese medicine dispensing device according to claim 1, characterized in that: The feed hopper (1), the first adjusting cylinder (2) and the second adjusting cylinder (6) are arranged in sequence in a vertical direction.

7. A multi-stage Chinese medicine dispensing device according to claim 5, characterized in that: The first motor (4) is arranged on a side outside the first adjusting cylinder (2), and the first motor (4) is connected to the end of the first adjusting screw (3) through a first transmission assembly (5); The second motor (8) is arranged on a side outside the second adjusting cylinder (6), and the second motor (8) is connected to the end of the second adjusting screw (7) via a second transmission assembly (9); The first motor (4) and the second motor (8) are respectively located on two sides of the feeding hopper (1).

8. A multi-stage Chinese medicine dispensing device according to claim 1, characterized in that: An anti-jamming component is also provided at the first discharge port (2-1), the anti-jamming component comprising a notch (3-2) formed at a local position on the spiral blade (3-1) of the first adjusting screw (3), the notch (3-2) being located at the position of the first discharge port (2-1), the notch (3-2) being formed by shrinking inward from the outer edge of the spiral blade (3-1) to expand the distance between the outer edge of the spiral blade (3-1) and the side wall of the discharge port (12-1).

9. A multi-stage Chinese medicine dispensing device according to claim 8, characterized in that: An elastic blade (3-3) is connected to the notch (3-2), and the elastic blade (3-3) is used to complete the missing part of the spiral blade (3-1) at the notch (3-2).

10. A multi-stage Chinese medicine dispensing device according to claim 9, characterized in that: A feeding cylinder (11) is connected to the first discharge port (2-1), an end of the first adjusting screw (3) extends to the discharge position of the feeding cylinder (11), and a material dropping channel (6-1) is provided between the feeding cylinder (11) and the second adjusting cylinder (6); A material crushing piece (11-1) is provided on an opening at one end of the material conveying cylinder (11) close to the first material discharge port (2-1). The material crushing piece (11-1) faces the material on the side of the first material discharge port (2-1) and can hinder the rotation of the material to achieve the purpose of crushing.

11. A multi-stage Chinese medicine dispensing device according to claim 10, characterized in that: The material crushing element (11-1) is a tooth-shaped structure at least partially formed at the opening of the material conveying cylinder (11); Wherein, the tooth-like structure has at least a tip facing the first discharge port (2-1), and / or the tooth-like structure has at least a tooth edge protruding toward the center of the first discharge port (2-1).

12. A multi-stage Chinese medicine dispensing device according to claim 11, characterized in that: A limiting structure (11-2) is provided on the inner wall of the conveying barrel (11), and the limiting structure (11-2) has at least an obstructive effect on the circumferential rotation of the conveying barrel (11), so as to limit the rotation of the material in the conveying barrel (11).

13. A multi-stage Chinese medicine dispensing device according to claim 12, characterized in that: The limiting structure (11-2) is at least one pattern formed on the inner wall of the feeding cylinder (11); Wherein, the texture is any one of a concave structure or a convex structure or a combination of the two; Wherein, the texture has an inclination along the discharge direction.

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