Automatic feeding and discharging device of pharmaceutical mixing machine

The design of the automatic loading and unloading device solves the problem of low automation in pharmaceutical mixers, realizes automated processing and precise control of drug raw materials, and improves mixing efficiency and safety.

CN224345805UActive Publication Date: 2026-06-12MENGYANG PHARM (SHANGHAI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MENGYANG PHARM (SHANGHAI) CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing pharmaceutical mixers have low levels of automation, require manual loading and unloading, pose a risk of contamination of drug raw materials or spread of bacteria, and are difficult to control precisely in terms of dosage and speed, affecting the mixing effect.

Method used

The design includes an automatic feeding and discharging device, comprising a mixing mechanism, an automatic feeding mechanism, and a diversion mechanism. The device uses a motor to control the stirring, the speed of the baffle plate, and the automatic feeding of the feeding cylinder to achieve automated processing and precise control of pharmaceutical raw materials.

Benefits of technology

It improves mixing efficiency, reduces human contact, avoids drug stains and the spread of germs, and ensures uniform mixing and accurate dosing of drug raw materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic feeding and discharging device of pharmaceutical mixing machine, including support plate, a plurality of support legs are fixedly connected to the bottom of support plate, and the top of support plate is provided with mixing tank, both sides wall of mixing tank are fixedly connected with support frame, and the bottom of mixing tank is provided with the discharge gate, and the top of mixing tank is provided with mixing mechanism, and the top of mixing tank is provided with the top plate, and the top of mixing tank is provided with a plurality of material guide pipes of side wall installation, and a plurality of support rods are fixedly connected between the bottom of top plate and the top of support plate, and the top of top plate is fixedly connected with the fixed support, and the fixed support is provided with the shunt mechanism, and the top plate is provided with automatic feeding mechanism, and the discharge gate end is provided with automatic discharging mechanism. The utility model discloses can complete automatic feeding and discharging work without manual, and the efficiency is high, and the labor intensity is small, and need not to contact frequently contact medicine raw material, can accurate control medicine raw material's delivery capacity and delivery speed.
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Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical manufacturing technology, and in particular relates to an automatic loading and unloading device for a pharmaceutical mixer. Background Technology

[0002] Pharmaceutical mixers are key pieces of equipment in the pharmaceutical manufacturing process, specifically designed to uniformly mix various drug raw materials, excipients, or other components together. As one of the core pieces of equipment in a pharmaceutical production line, the pharmaceutical mixer's core value lies in ensuring a high degree of uniform mixing of drug components, thereby guaranteeing that each dose of medicine contains a precise and consistent dosage of the active ingredient.

[0003] Currently, there are some mixing devices on the market, such as a mixing machine with publication number CN219441292U disclosed on the China Patent Network. This mixing machine can be used for mixing drug raw materials in pharmaceutical production, but it has some defects and shortcomings that need to be improved: (1) Some existing pharmaceutical mixing machines have a low degree of automation, and the loading and unloading work often needs to be done manually. This is not only inefficient and labor-intensive, but also requires workers to frequently come into contact with drug raw materials during loading and unloading, which makes it easy for the surface of the drug raw materials to be covered with dirt or germs left on the workers' hands; (2) Due to the structural design of some existing pharmaceutical mixing machines, it is often difficult to accurately control the amount and speed of drug raw material feeding during feeding. When the amount of drug raw material fed is too large or the feeding speed is too fast, it will increase the workload of the pharmaceutical mixing machine, making it difficult to mix the drug raw materials evenly, thus affecting its mixing effect. Therefore, in view of the above problems, the automatic loading and unloading device for a pharmaceutical mixing machine provided by this utility model is of great significance. Utility Model Content

[0004] This invention provides an automatic loading and unloading device for a pharmaceutical mixer. The mixing mechanism stirs the pharmaceutical raw materials entering the mixing tank to ensure thorough mixing. Automatic loading and unloading mechanisms complete the automatic loading and unloading process, eliminating the need for manual operation. This results in high efficiency, low labor intensity, and avoids frequent contact with the pharmaceutical raw materials, effectively preventing the adhesion of dirt or germs from workers' hands. A diversion mechanism diverts the pharmaceutical raw materials before mixing to prevent blockage caused by concentrated accumulation. By controlling the rotation speed of the baffle in the automatic loading mechanism, the pharmaceutical raw materials in each diversion pipe fall at a specified speed, allowing for precise control of the amount and speed of raw material input. This effectively prevents excessive input or excessively fast input from increasing the workload of the mixing mechanism, thus solving the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses an automatic loading and unloading device for a pharmaceutical mixer, comprising a support plate, several support legs fixedly connected to the bottom of the support plate, a mixing tank disposed above the support plate, support frames fixedly connected to both side walls of the mixing tank, the bottom end of the support frame fixedly connected to the top of the support plate, a discharge port opened at the bottom of the mixing tank, the discharge port penetrating the support plate and extending below the support plate, a mixing mechanism disposed at the top of the mixing tank, a top plate disposed above the mixing tank, several guide pipes installed on the top side wall of the mixing tank, the guide pipes being L-shaped, one end of the guide pipes communicating with the mixing tank, and the other end of the guide pipes penetrating the top plate and extending above the top plate, several support rods fixedly connected between the bottom of the top plate and the top of the support plate, a fixing frame fixedly connected to the top of the top plate, a diversion mechanism disposed on the fixing frame, an automatic loading mechanism disposed on the top plate, and an automatic unloading mechanism disposed at the end of the discharge port;

[0007] The mixing mechanism includes a top cover, which is installed on the top of the mixing tank. A first motor is installed on the top of the top cover. The output shaft of the first motor is connected to a stirring shaft via a coupling. The stirring shaft is located inside the mixing tank, and several stirring blades are installed on both sides of its shaft.

[0008] The diversion mechanism includes a diversion chamber, which is installed on the top of the fixed frame. A sealing cover is installed on the top of the diversion chamber, and several diversion pipes are installed on the side wall of the diversion chamber. The diversion pipes are L-shaped, with one end of the pipe connected to the diversion chamber and the other end of the pipe penetrating the top of the fixed frame and flush with the bottom surface of the fixed frame.

[0009] The automatic feeding mechanism includes a second motor, which is installed on the top of the top plate. A baffle plate is fixedly connected to the top of its output shaft. The top surface of the baffle plate is attached to the bottom surface of the fixed frame, and the baffle plate has several material discharge ports.

[0010] The automatic feeding mechanism includes a feeding cylinder with several feeding holes on the bottom wall. Guide seats are fixedly connected to the top walls on both sides of the feeding cylinder. Guide holes are provided on the guide seats, and guide rods are inserted into the guide holes. The top end of the guide rod is fixedly connected to the bottom of the support plate, and the bottom end is fixedly connected to a limit block. A spring is wound around the body of the guide rod, and the top and bottom ends of the spring are fixedly connected to the bottom of the guide seat and the top of the limit block, respectively.

[0011] Furthermore, the diversion chamber is cylindrical, with a guide block fixedly connected to its inner wall. The top end face of the guide block is conical, and the top end face of the guide block is flush with the connection point of each diversion pipe and the diversion chamber.

[0012] Furthermore, the diversion pipes are distributed in an equidistant ring along the circumference of the diversion chamber, and the material discharge ports are circular, the number of which is the same as that of the diversion pipes, and the diameter is equal to the outer diameter of the diversion pipes. Moreover, the center of each material discharge port corresponds one-to-one with the center of the bottom end of each diversion pipe.

[0013] Furthermore, the number of the guide tubes is the same as that of the diverter tubes, and their top openings are funnel-shaped and open outwards. The top openings of each guide tube are located directly below the bottom opening of the corresponding diverter tube.

[0014] Furthermore, both the feeding cylinder and the discharge port are circular, and the inner diameter of the feeding cylinder and the outer diameter of the discharge port are equal. The feeding holes are distributed in an equidistant ring along the circumference of the feeding cylinder.

[0015] Furthermore, the diameter of the guide hole is equal to the diameter of the guide rod, and the center of each guide hole corresponds one-to-one with the center of each guide rod. The limiting block is circular, and its diameter is larger than the diameter of the guide hole.

[0016] The present invention has the following advantages over the prior art:

[0017] (1) When the automatic feeding and unloading device of the pharmaceutical mixer of this utility model is used, the mixing mechanism can stir the raw materials of the medicine entering the mixing tank so as to mix them thoroughly. The automatic feeding mechanism and the automatic unloading mechanism can complete the automatic feeding and unloading work. The entire feeding and unloading process does not need to be completed manually, which is efficient, has low labor intensity, and does not require frequent contact with the raw materials of the medicine, thereby effectively avoiding the adhesion of dirt or germs on the surface of the raw materials of the medicine to the workers' hands.

[0018] (2) When the automatic feeding and unloading device of the pharmaceutical mixer of this utility model is used, the drug raw materials can be diverted before mixing through the diversion mechanism to avoid the drug raw materials from accumulating and causing blockage. By controlling the rotation speed of the baffle in the automatic feeding mechanism, the drug raw materials in each diversion tube can fall at a specified speed so as to accurately control the amount and speed of drug raw material feeding, thereby effectively preventing the mixing mechanism from increasing the workload when the amount or speed of drug raw material feeding is too large.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an automatic loading and unloading device for a pharmaceutical mixer according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the support plate and the top plate in this utility model;

[0023] Figure 3 This is a schematic diagram of the mixing tank in this utility model;

[0024] Figure 4 This is a schematic diagram of the mixing mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the diversion mechanism in this utility model;

[0026] Figure 6 This is a front sectional view of the diversion mechanism in this utility model;

[0027] Figure 7 This is a schematic diagram of the automatic feeding mechanism in this utility model;

[0028] Figure 8 This is a schematic diagram of the automatic feeding mechanism in this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Support plate; 2. Support leg; 3. Mixing tank; 4. Support frame; 5. Discharge port; 6. Top plate; 7. Guide pipe; 8. Support rod; 9. Fixing frame; 10. Top cover; 11. First motor; 12. Stirring shaft; 13. Stirring blade; 14. Diversion chamber; 15. Sealing cover; 16. Diversion pipe; 17. Second motor; 18. Baffle plate; 19. Discharge port; 20. Discharge cylinder; 21. Discharge hole; 22. Guide seat; 23. Guide hole; 24. Guide rod; 25. Limiting block; 26. Spring; 27. Guide block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figure 1-8 As shown, an automatic loading and unloading device for a pharmaceutical mixer according to this utility model includes a support plate 1. Several support legs 2 are fixedly connected to the bottom of the support plate 1. A mixing tank 3 is positioned above the support plate 1. Support frames 4 are fixedly connected to both side walls of the mixing tank 3. The bottom end of the support frames 4 is fixedly connected to the top of the support plate 1. A discharge port 5 is opened at the bottom of the mixing tank 3, passing through the support plate 1 and extending below it. A mixing mechanism is provided at the top of the mixing tank 3. The mixing tank 3 is equipped with a top plate 6. Several guide pipes 7 are installed on the top side wall of the mixing tank 3. The guide pipes 7 are L-shaped, with one end of the pipe connected to the mixing tank 3 and the other end of the guide pipe 7 passing through the top plate 6 and extending to the top of the top plate 6. Several support rods 8 are fixedly connected between the bottom of the top plate 6 and the top of the support plate 1. A fixing frame 9 is fixedly connected to the top of the top plate 6. A diversion mechanism is provided on the fixing frame 9. An automatic feeding mechanism is provided on the top plate 6. An automatic unloading mechanism is provided at the end of the discharge port 5.

[0034] The mixing mechanism includes a top cover 10, which is installed on the top of the mixing tank 3. A first motor 11 is installed on the top of the top cover 10. The output shaft of the first motor 11 is connected to a stirring shaft 12 via a coupling. The stirring shaft 12 is located inside the mixing tank 3. Several stirring blades 13 are installed on both sides of the shaft. By driving the first motor 11, the stirring shaft 12 and each stirring blade 13 can be rotated together. When the stirring blades 13 rotate, the drug raw materials in the mixing tank 3 can be stirred to make them fully mixed.

[0035] The diversion mechanism includes a diversion chamber 14, which is installed on the top of the fixed frame 9. A sealing cover 15 is installed on the top of the diversion chamber 14, and several diversion pipes 16 are installed on the side wall of the diversion chamber 14. The diversion pipes 16 are L-shaped, with one end of the pipe connected to the diversion chamber 14 and the other end of the pipe penetrating the top of the fixed frame 9 and flush with the bottom surface of the fixed frame 9. The drug raw materials to be mixed can be placed in the diversion chamber 14. After the drug raw materials enter the diversion chamber 14, they can enter each diversion pipe 16 to achieve the diversion function, thereby avoiding the accumulation of drug raw materials and causing blockage. The sealing cover 15 and the diversion chamber 14 can be connected by a hinge structure. When mixing drug raw materials, the sealing cover 15 can be closed to achieve the sealing function.

[0036] The automatic feeding mechanism includes a second motor 17, which is mounted on the top of the top plate 6. A baffle plate 18 is fixedly connected to the top of its output shaft. The top surface of the baffle plate 18 is attached to the bottom surface of the fixed frame 9, and the baffle plate 18 has several material drop ports 19. By driving the second motor 17, the baffle plate 18 can be rotated. By controlling the speed of the second motor 17, the speed of the baffle plate 18 can be adjusted so that it rotates at a uniform speed according to a specified speed.

[0037] The automatic feeding mechanism includes a feeding cylinder 20. The bottom wall of the feeding cylinder 20 has several feeding holes 21. Guide seats 22 are fixedly connected to the top walls on both sides of the feeding cylinder 20. Guide holes 23 are provided on the guide seats 22. A guide rod 24 is inserted into the guide holes 23. The top end of the guide rod 24 is fixedly connected to the bottom of the support plate 1, and the bottom end is fixedly connected to a limit block 25. A spring 26 is wound around the body of the guide rod 24. The top and bottom ends of the spring 26 are fixedly connected to the bottom of the guide seat 22 and the top of the limit block 25, respectively. The mixed drug raw materials can enter the discharge port 5 along the inner wall of the mixing tank 3 and fall into the feeding cylinder 20 through the discharge port 5.

[0038] The diversion chamber 14 is cylindrical, and a guide block 27 is fixedly connected to its inner wall. The top end face of the guide block 27 is conical, and the top end face of the guide block 27 is level with the connection point of each diversion pipe 16 and the diversion chamber 14. When the drug raw material enters the diversion chamber 14, it can slide along the guide block 27 to each diversion pipe 16 to guide the material and thus prevent the drug raw material from remaining at the bottom of the diversion chamber 14.

[0039] The diversion pipes 16 are distributed in an equidistant ring along the circumference of the diversion chamber 14. The discharge ports 19 are circular, and their number is the same as that of the diversion pipes 16. Their diameters correspond to the outer diameters of the diversion pipes 16, and the center of each discharge port 19 corresponds one-to-one with the center of the bottom end of each diversion pipe 16. When the baffle plate 18 rotates to the position where each discharge port 19 is aligned with the bottom end of the diversion pipe 16, the drug raw materials diverted by the diversion pipes 16 can fall through each discharge port 19. When the baffle plate 18 continues to rotate until each discharge port 19 is no longer aligned with the bottom end of the diversion pipe 16, the drug raw materials in the diversion pipes 16 will no longer fall. At this time, by controlling the rotation speed of the baffle plate 18, the drug raw materials in each diversion pipe 16 can fall at a specified speed, so as to accurately control the amount and speed of drug raw material feeding, thereby effectively preventing the increased workload of the mixing mechanism when the amount or speed of drug raw material feeding is too large.

[0040] The number of feed pipes 7 is the same as that of the diversion pipes 16. The top opening of each feed pipe 7 is flared and opens outward. The top opening of each feed pipe 7 is located directly below the bottom opening of the corresponding diversion pipe 16. The raw materials of the medicine falling through each drop port 19 can fall into the corresponding feed pipe 7 and enter the mixing tank 3 through each feed pipe 7 to complete the automatic feeding work. The entire feeding process does not require manual operation, which is highly efficient and labor-intensive. It also eliminates the need for frequent contact with the raw materials of the medicine, thus effectively avoiding the adhesion of dirt or germs left on the hands of the workers to the surface of the raw materials of the medicine. The flared opening can expand the feeding area of ​​the feed pipe 7 to ensure that the raw materials of the medicine can fall accurately, thereby preventing the raw materials of the medicine from spilling out during feeding.

[0041] Both the feeding cylinder 20 and the discharge port 5 are circular, and the inner diameter of the feeding cylinder 20 is equal to the outer diameter of the discharge port 5. The feeding holes 21 are distributed in an equidistant ring along the circumference of the feeding cylinder 20. The feeding cylinder 20 can fit against the outer wall of the discharge port 5. As more and more raw materials fall into the feeding cylinder 20, the feeding cylinder 20 will gradually descend under the action of gravity and stretch the spring 26. When a certain amount is exceeded, the raw materials in the feeding cylinder 20 will be discharged through each feeding hole 21, thus completing the automatic feeding work without manual operation. When a portion of the raw materials are discharged, the weight in the feeding cylinder 20 is reduced. At this time, the feeding cylinder 20 will return to the initial position under the elastic reset of the spring 26, and the raw materials will no longer be discharged. The automatic feeding stops until the amount of raw materials in the feeding cylinder 20 exceeds the extra value again.

[0042] The diameter of the guide hole 23 is equal to the diameter of the guide rod 24, and the center of each guide hole 23 corresponds one-to-one with the center of each guide rod 24. The limiting block 25 is circular and its diameter is larger than the diameter of the guide hole 23. The guide hole 23 and the guide rod 24 cooperate to guide the feeding cylinder 20 so that the feeding cylinder 20 moves linearly in the vertical direction. The limiting block 25 can play a limiting role to prevent the feeding cylinder 20 from detaching from the discharge port 5.

[0043] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0044] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0045] The working principle of this utility model is as follows:

[0046] In use, the pharmaceutical raw materials to be mixed can be placed into the diversion chamber 14. After entering the diversion chamber 14, the pharmaceutical raw materials can enter the respective diversion pipes 16 to achieve diversion, thereby avoiding the accumulation of pharmaceutical raw materials and causing blockage. Then, the second motor 17 is driven to drive the baffle plate 18 to rotate. By controlling the speed of the second motor 17, the speed of the baffle plate 18 can be adjusted to make it rotate at a specified speed. When the baffle plate 18 rotates to the position where each discharge port 19 is aligned with the bottom end of the diversion pipe 16, the pharmaceutical raw materials diverted by the diversion pipe 16 can pass through... The raw materials fall through each discharge port 19. When the baffle plate 18 continues to rotate until the discharge ports 19 are no longer aligned with the bottom opening of the diversion pipe 16, the raw materials in the diversion pipe 16 will stop falling. At this time, by controlling the rotation speed of the baffle plate 18, the raw materials in the diversion pipe 16 can fall at a specified speed, so as to accurately control the amount and speed of the raw materials. This can effectively prevent the increase in the workload of the mixing mechanism when the amount or speed of the raw materials is too large. The raw materials falling through each discharge port 19 can fall into the corresponding guide pipe 7 and enter the feed through each guide pipe 7. The raw materials are fed into the mixing tank 3 automatically, eliminating the need for manual operation. This process is highly efficient, reduces labor intensity, and avoids frequent contact with the raw materials, thus preventing the adhesion of dirt or germs from the workers' hands. Once the raw materials enter the mixing tank 3, the first motor 11 drives the stirring shaft 12, along with the stirring blades 13, to rotate. The rotating blades 13 stir the raw materials in the mixing tank 3, ensuring thorough mixing. The mixed raw materials then flow along the inner wall of the mixing tank 3 into the outlet 5 and are discharged through the outlet. The raw material falls into the feeding cylinder 20 through the nozzle 5. As more and more raw material falls into the feeding cylinder 20, the feeding cylinder 20 will gradually descend under the action of gravity and stretch the spring 26. When it exceeds a certain amount, the raw material in the feeding cylinder 20 will be discharged through each feeding hole 21, thus completing the automatic feeding work without manual operation. After a portion of the raw material is discharged, the weight in the feeding cylinder 20 is reduced. At this time, the feeding cylinder 20 will return to the initial position under the elastic reset of the spring 26, and the raw material will no longer be discharged. The automatic feeding stops until the amount of raw material in the feeding cylinder 20 exceeds the extra value again.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic loading and unloading device for a pharmaceutical mixer, characterized in that, The system includes a support plate, with several support legs fixedly connected to its bottom. A mixing tank is positioned above the support plate, and support frames are fixedly connected to both side walls of the mixing tank. The bottom of each support frame is fixedly connected to the top of the support plate. A discharge port is located at the bottom of the mixing tank, extending through the support plate and below it. A mixing mechanism is located at the top of the mixing tank, and a top plate is positioned above it. Several L-shaped guide pipes are installed on the top side wall of the mixing tank, with one end connected to the mixing tank and the other end extending through the top plate and above it. Several support rods are fixedly connected between the bottom of the top plate and the top of the support plate, and a fixing frame is fixedly connected to the top of the top plate. A diversion mechanism is mounted on the fixing frame. An automatic feeding mechanism is mounted on the top plate, and an automatic unloading mechanism is mounted at the end of the discharge port. The mixing mechanism includes a top cover, which is installed on the top of the mixing tank. A first motor is installed on the top of the top cover. The output shaft of the first motor is connected to a stirring shaft via a coupling. The stirring shaft is located inside the mixing tank, and several stirring blades are installed on both sides of its shaft. The diversion mechanism includes a diversion chamber, which is installed on the top of the fixed frame. A sealing cover is installed on the top of the diversion chamber, and several diversion pipes are installed on the side wall of the diversion chamber. The diversion pipes are L-shaped, with one end of the pipe connected to the diversion chamber and the other end of the pipe penetrating the top of the fixed frame and flush with the bottom surface of the fixed frame. The automatic feeding mechanism includes a second motor, which is installed on the top of the top plate. A baffle plate is fixedly connected to the top of its output shaft. The top surface of the baffle plate is attached to the bottom surface of the fixed frame, and the baffle plate has several material discharge ports. The automatic feeding mechanism includes a feeding cylinder with several feeding holes on the bottom wall. Guide seats are fixedly connected to the top walls on both sides of the feeding cylinder. Guide holes are provided on the guide seats, and guide rods are inserted into the guide holes. The top end of the guide rod is fixedly connected to the bottom of the support plate, and the bottom end is fixedly connected to a limit block. A spring is wound around the body of the guide rod, and the top and bottom ends of the spring are fixedly connected to the bottom of the guide seat and the top of the limit block, respectively.

2. The automatic loading and unloading device for a pharmaceutical mixer according to claim 1, characterized in that, The diversion chamber is cylindrical, and a guide block is fixedly connected to its inner wall. The top end face of the guide block is conical, and the top end face of the guide block is flush with the connection point of each diversion pipe and the diversion chamber.

3. The automatic loading and unloading device for a pharmaceutical mixer according to claim 1, characterized in that, The diversion pipes are distributed in an equidistant ring along the circumference of the diversion chamber. The material discharge ports are circular, and their number is the same as that of the diversion pipes. Their diameters correspond to the outer diameters of the diversion pipes. The center of each material discharge port corresponds one-to-one with the center of the bottom opening of each diversion pipe.

4. The automatic loading and unloading device for a pharmaceutical mixer according to claim 1, characterized in that, The number of the guide tubes is the same as that of the diverter tubes. The top opening of each guide tube is flared and opens outward, and the top opening of each guide tube is located directly below the bottom opening of the corresponding diverter tube.

5. The automatic loading and unloading device for a pharmaceutical mixer according to claim 1, characterized in that, Both the feeding cylinder and the discharge port are circular, and the inner diameter of the feeding cylinder and the outer diameter of the discharge port are equal. The feeding holes are distributed in an equidistant ring along the circumference of the feeding cylinder.

6. The automatic loading and unloading device for a pharmaceutical mixer according to claim 1, characterized in that, The diameter of the guide hole is equal to the diameter of the guide rod, and the center of each guide hole corresponds one-to-one with the center of each guide rod. The limiting block is circular, and its diameter is larger than the diameter of the guide hole.