Traditional Chinese medicine grinding device with equal medicine discharging function

By designing a multi-station grinding structure and synchronous belt drive, the problems of continuous operation and efficiency in traditional Chinese medicine grinding devices have been solved, achieving equal output of medicine and simplified cleaning, thereby improving the stability and efficiency of traditional Chinese medicine processing.

CN224422992UActive Publication Date: 2026-06-30NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL
Filing Date
2025-06-19
Publication Date
2026-06-30

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Abstract

This utility model discloses a traditional Chinese medicine grinding device with equal-volume dispensing function, belonging to the field of traditional Chinese medicine processing technology. The device includes a main body with a sealing cover connected to the top. A feed inlet is fixed to the top of the sealing cover. Supports are connected to both sides of the top of the sealing cover, and electric cylinders are mounted on the top of the supports. A pressure block is connected to the output end of the electric cylinder. A baffle and a baffle plate are connected to the upper part of the inside of the sealing cover. A chute is formed on the outer surface of the baffle, the top of the baffle, and the top of the sealing cover. A grinding roller is connected between the main body and the sealing cover. This utility model, through the arrangement of the grinding roller, electric cylinder, and chute, enables multi-station operation by extending the length of the grinding roller, thus increasing the number of electric cylinders, pressure blocks, and other structures. By increasing the number of these structures, multiple electric cylinders and pressure blocks alternately perform grinding and feeding operations, increasing the continuity of grinding. Continuous grinding is achieved through multi-station alternating cyclic operation, resulting in good processing continuity and high production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine processing technology, specifically a traditional Chinese medicine grinding device with equal dispensing function. Background Technology

[0002] Grinding is commonly used in the processing of traditional Chinese medicine. Its main purposes are to increase the dissolution rate and bioavailability of active ingredients, facilitate formulation and dispensing, improve drug uniformity, increase drug utilization and reduce waste. Specifically, it involves slicing dried medicinal materials. The purpose of drying is to prevent the medicinal materials from clumping together and forming a paste due to moisture during grinding, or to prevent the medicinal properties from being released into the water. Of course, some medicinal materials may have a certain amount of moisture in front of the eye, but these are usually non-water-absorbing materials, such as water-insoluble minerals and shellfish (such as cinnabar, realgar, and calamine). The purpose of slicing is to increase the contact area of ​​the medicinal materials and speed up the grinding process.

[0003] A traditional Chinese medicine grinding device, with application number 202421709031.X, includes a grinding box with a discharge hood fixed at its bottom. Control buttons are mounted on the surface of the grinding box, which is covered by a cover plate. A grinding mechanism is installed inside the grinding box, comprising a pressing grinding component, a grinding roller, and a central shaft. Switching mechanisms, consisting of a handle and a switching component, are located on both sides of the grinding box. A scraping mechanism, comprising a scraping component and a connecting frame, is also installed inside the grinding box. This invention not only has a simple structure and is easy to process in the early stages, avoiding powder waste during use, but also improves the flexibility of the grinding device.

[0004] This technical solution uses linear displacement of the extrusion structure to ensure close contact between the Chinese medicinal materials and the grinding roller for efficient grinding, avoiding the impact of the materials moving around. However, this technical solution is not suitable for continuous grinding. After the materials are ground, the staff needs to reopen the lid to put the materials back in, and then close the lid again, resulting in low work efficiency. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a traditional Chinese medicine grinding device with equal dispensing function to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a traditional Chinese medicine grinding device with equal dispensing function, comprising a main body, a sealing cover connected to the top of the main body, and a feed inlet fixed to the top of the sealing cover; brackets connected to both sides of the top of the sealing cover, and an electric cylinder installed on the top of the brackets; a pressure block connected to the output end of the electric cylinder; a baffle and a baffle plate connected to the upper part of the inside of the sealing cover, and a chute provided on the outer surface of the baffle, the top of the baffle, and the top of the sealing cover; a grinding roller connected between the main body and the sealing cover, and a retaining ring sleeved on the outside of the grinding roller.

[0007] By adopting the above technical solution, after the device is turned on, the operator can feed small-to-medium volume medicinal materials such as dried flakes, blocks, and granules. The feed inlet length matches the sealing cover and is connected to multiple chutes, so that multi-station feeding can be achieved by using a single feed inlet in conjunction with multiple chutes. When the electric cylinder drives the pressing block to move upward, the pressing block no longer blocks the chutes, allowing the dried flakes of medicinal materials in the chutes to fall onto the grinding roller. When the electric cylinder drives the pressing block to move downward, the pressing block blocks the chutes and stops feeding, and the pressing block will press the dried flakes of medicinal materials downward, so that the dried flakes of medicinal materials are in close contact with the grinding roller and ground. During this process, the space of the grinding area is divided into multiple small spaces by the baffle ring and baffle plate, which prevents the dried flakes of medicinal materials from moving horizontally from side to side when the pressing block moves downward, thus avoiding affecting the grinding efficiency. The baffle can also block the front and back of the grinding area, preventing the dried flakes of medicinal materials from moving horizontally from front to back, thus avoiding affecting the grinding efficiency.

[0008] Furthermore, multiple electric cylinders, retaining rings, retaining blocks, baffles, and pressure blocks are provided, and these multiple electric cylinders, retaining rings, retaining blocks, baffles, and pressure blocks are distributed at equal intervals.

[0009] By adopting the above technical solution, multi-station operation can be achieved by extending the length of the grinding roller, so as to increase the number of electric cylinders, pressure blocks and other structures. By increasing the number of these structures, multiple electric cylinders and pressure blocks alternately perform grinding and feeding operations, increasing the continuity of grinding. When the electric cylinder drives the pressure block to move upward, the pressure block no longer blocks the chute, allowing the dry flakes of medicinal material in the chute to fall onto the grinding roller. When the electric cylinder drives the pressure block to move downward, the pressure block blocks the chute and stops feeding, and the pressure block will press the dry flakes of medicinal material downward, so that the dry flakes of medicinal material are in close contact with the grinding roller and are ground.

[0010] Furthermore, the plurality of retaining rings correspond to the plurality of baffles, and the plurality of pressing blocks correspond to the areas of the grinding roller where no retaining rings are provided.

[0011] By adopting the above technical solution, the grinding area is divided into multiple small spaces by using baffles and baffles, which prevents the dry, sheet-like medicinal materials from moving horizontally from side to side and affecting the grinding efficiency when the pressing block moves down.

[0012] Furthermore, the multiple retaining rings and multiple retaining blocks are distributed alternately.

[0013] By adopting the above technical solution, the baffle can block the front and back of the grinding area, preventing the dry, sheet-like medicinal materials from moving horizontally back and forth and affecting the grinding efficiency.

[0014] Furthermore, the feed inlet is connected to multiple chutes, and the bottom of the chutes is sloping.

[0015] By adopting the above technical solution, the length of the feed inlet is matched with the sealing cover and connected to multiple chutes, so as to realize multi-station feeding work by using a single feed inlet in conjunction with multiple chutes.

[0016] Furthermore, a motor is installed on one side of the main body of the device, and a synchronous pulley is connected to both the output end of the motor and one end of the grinding roller. A synchronous belt is connected between the two synchronous pulleys. A twin-screw rotary feeder is installed at the bottom of the main body of the device, and a control cabinet is installed on one side of the outer surface of the main body of the device.

[0017] By adopting the above technical solution, the staff turns on the motor and twin-screw rotary feeder through the control cabinet. After the motor starts, the output end drives the grinding roller to rotate through the synchronous pulley and synchronous belt. The twin-screw rotary feeder uses two meshing or parallel screws for conveying and metering. The volume of material pushed by each screw is basically constant. It has good adaptability to powders with extremely poor flowability, easy bridging, easy agglomeration, and high viscosity. It has strong forced conveying capacity and high precision, thus facilitating the achievement of equal-volume drug output.

[0018] Furthermore, the sealing cover is rotatably connected to the device body via a hinge, and a swing bolt is provided between the sealing cover and the device body. The swing bolt is rotatably connected to the device body, and the nut of the swing bolt is detachably connected to the sealing cover.

[0019] By adopting the above technical solution, when cleaning the inside of the device body, the worker first loosens the nut on the swing bolt, then rotates the swing screw downwards to separate the swing screw and nut from the sealing cover, thereby ending the limitation of the sealing cover. Then the worker can rotate the sealing cover upwards to open it, so that the worker can clean the inside of the device body, the inside of the sealing cover and the grinding roller. The structure is simple and the operation is convenient. After cleaning, the sealing cover can be reinstalled by simply reversing the operation.

[0020] Furthermore, a guide plate is fixed inside the lower part of the main body of the device, and the inside of the guide plate is sloping all around.

[0021] By adopting the above technical solution, the fine Chinese medicine granules produced by grinding fall into the lower part of the main body of the device and are guided into the twin-screw rotary feeder by the guide plate.

[0022] Furthermore, the guide plate is made of 316L stainless steel, and the surface of the guide plate is mirror polished or coated with food-grade PTFE coating.

[0023] By adopting the above technical solution, due to the material and surface treatment of the guide plate, the surface friction coefficient of the guide plate is extremely low, effectively avoiding the phenomenon of fine Chinese medicine granular powder adhering to the top of the guide plate.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model, through the arrangement of grinding rollers, electric cylinders, and chutes, enables multi-station operation by extending the length of the grinding rollers. This allows for an increase in the number of electric cylinders, pressure blocks, and other structures. By increasing the number of these structures, multiple electric cylinders and pressure blocks alternately perform grinding and feeding operations, increasing the continuity of grinding. When the electric cylinder drives the pressure block to move upward, the pressure block no longer blocks the chutes, allowing the dry, flaky medicinal materials in the chutes to fall onto the grinding rollers. When the electric cylinder drives the pressure block to move downward, the pressure block blocks the chutes, stopping the feeding, and the pressure block presses down on the dry, flaky medicinal materials, ensuring close contact between the dry, flaky medicinal materials and the grinding rollers for grinding. Continuous grinding is achieved through alternating multi-station operation, resulting in good processing continuity and high production efficiency.

[0026] 2. This utility model, through the setting of a retaining ring, a retaining block, and a baffle, divides the grinding area into multiple small spaces. The retaining ring and the baffle prevent the dry, sheet-like medicinal materials from moving horizontally from side to side when the pressing block moves downward, thus avoiding affecting the grinding efficiency. The retaining block can block the front and back of the grinding area, preventing the dry, sheet-like medicinal materials from moving horizontally from front to back, thus avoiding affecting the grinding efficiency. This increases the stability during grinding and prevents the dry, sheet-like medicinal materials from moving away from the moving pressing block, thereby improving the grinding efficiency.

[0027] 3. This utility model, through the setting of the feed inlet and the chute, the length of the feed inlet matches the sealing cover and is connected to multiple chutes, so as to realize multi-station feeding through a single feed inlet in conjunction with multiple chutes; and facilitates automatic feeding by gravity. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0030] Figure 3 This is a structural diagram of the present invention during maintenance;

[0031] Figure 4 This is a side sectional view of the present invention.

[0032] Figure 5This is a cross-sectional structural diagram of the present invention.

[0033] In the diagram: 1. Main body of the device; 2. Sealing cover; 3. Swing bolt; 4. Motor; 5. Synchronous pulley; 6. Synchronous belt; 7. Twin-screw rotary feeder; 8. Feed inlet; 9. Grinding roller; 10. Support; 11. Electric cylinder; 12. Retaining ring; 13. Stop block; 14. Baffle; 15. Chute; 16. Press block; 17. Guide plate; 18. Control cabinet. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1:

[0037] A traditional Chinese medicine grinding device with equal dispensing function, such as Figures 1-5As shown, the device includes a main body 1, a sealing cover 2 connected to the top of the main body 1, a feed inlet 8 fixed to the top of the sealing cover 2, brackets 10 connected to both sides of the top of the sealing cover 2, an electric cylinder 11 mounted on the top of the brackets 10, and a pressure block 16 connected to the output end of the electric cylinder 11; a stop block 13 and a baffle plate 14 are respectively connected to the upper part of the inside of the sealing cover 2, and chutes 15 are opened on the outer surface of the stop block 13, the top of the stop block 13, and the top of the sealing cover 2. The feed inlet 8 is connected to multiple chutes 15. 15. The bottom is sloped; a grinding roller 9 is connected between the main body 1 and the sealing cover 2. A retaining ring 12 is sleeved on the outside of the grinding roller 9. Multiple electric cylinders 11, retaining rings 12, stop blocks 13, baffles 14, and pressure blocks 16 are provided. The multiple electric cylinders 11, retaining rings 12, stop blocks 13, baffles 14, and pressure blocks 16 are equidistantly distributed. Multiple retaining rings 12 correspond to multiple baffles 14, and multiple pressure blocks 16 correspond to the areas of the grinding roller 9 where no retaining rings 12 are provided. Each retaining ring 12 intersects with multiple stop blocks 13. With the device staggered and in a staggered configuration, after startup, operators can feed small-to-medium volume medicinal materials in the form of dried flakes, blocks, or granules. The length of the feed inlet 8 matches the sealing cap 2 and is connected to multiple chutes 15, facilitating multi-station feeding through a single feed inlet 8 in conjunction with multiple chutes 15. When the electric cylinder 11 drives the pressing block 16 upward, the pressing block 16 no longer obstructs the chutes 15, causing the dried flake medicinal materials in the chutes 15 to fall onto the grinding roller 9. When the electric cylinder 11 drives the pressing block 16 downward... The pressing block 16 blocks the material chute 15 to stop feeding, and the pressing block 16 will press down the dry sheet-like medicinal material, so that the dry sheet-like medicinal material is in close contact with the grinding roller 9 and is ground. During this period, the space of the grinding area is divided into multiple small spaces by the baffle ring 12 and the baffle plate 14 to prevent the dry sheet-like medicinal material from running horizontally from side to side when the pressing block 16 moves down, which would affect the grinding efficiency. The baffle block 13 can block the front and back of the grinding area to prevent the dry sheet-like medicinal material from running horizontally from front to back, which would affect the grinding efficiency.

[0038] See Figures 1-3 In the above embodiment, a motor 4 is installed on one side of the main body 1 of the device. The output end of the motor 4 and one end of the grinding roller 9 are both connected to a synchronous pulley 5. A synchronous belt 6 is connected between the two synchronous pulleys 5. After the motor 4 is started, the output end drives the grinding roller 9 to rotate through the synchronous pulley 5 and the synchronous belt 6. A twin-screw rotary feeder 7 is installed at the bottom of the main body 1 of the device. A control cabinet 18 is installed on one side of the outer surface of the main body 1 of the device. When it is necessary to discharge material, the operator turns on the twin-screw rotary feeder 7 through the control cabinet 18. The twin-screw rotary feeder 7 uses two meshing or parallel screws for conveying and metering. The volume of material pushed by each screw rotation is basically constant. It has good adaptability to powders with extremely poor flowability, easy bridging, easy agglomeration, and high viscosity. It has strong forced conveying capacity and high precision, thus facilitating the effect of equal amount of medicine being discharged.

[0039] Example 2:

[0040] Based on the above embodiment one, the following settings are now adopted for ease of cleaning.

[0041] See Figures 1-4 In the above embodiment, the sealing cover 2 is rotatably connected to the device body 1 via a hinge. A swing bolt 3 is provided between the sealing cover 2 and the device body 1. The swing bolt 3 is rotatably connected to the device body 1. The nut of the swing bolt 3 is detachably connected to the sealing cover 2. When it is necessary to clean the inside of the device body 1, the operator first loosens the nut on the swing bolt 3. Then, the operator rotates the swing screw downward to separate the swing screw and nut from the sealing cover 2, thereby ending the restriction on the sealing cover 2. After that, the operator can rotate the sealing cover 2 upward to open it, so that the operator can clean the inside of the device body 1, the inside of the sealing cover 2, and the grinding roller 9. The structure is simple and the operation is convenient. After cleaning, the sealing cover 2 can be reinstalled by simply reversing the operation.

[0042] Example 3:

[0043] Based on the above embodiment 1, in order to facilitate the entry of medicinal materials into the twin-screw rotary feeder 7, the following settings are now adopted.

[0044] See Figure 4 and Figure 5 In the above embodiment, a guide plate 17 is fixed inside the lower part of the main body 1 of the device. The inside of the guide plate 17 is sloping on all four sides. The guide plate 17 is made of 316L stainless steel. The surface of the guide plate 17 is mirror polished or coated with food-grade PTFE coating. The fine Chinese medicine granules generated by grinding fall into the lower part of the main body 1 of the device. The fine Chinese medicine granules are guided into the twin-screw rotary feeder 7 through the guide plate 17. Due to the material and surface treatment of the guide plate 17, the surface friction coefficient of the guide plate 17 is extremely low, which effectively avoids the phenomenon of fine Chinese medicine granules adhering to the top of the guide plate 17.

[0045] The implementation principle of this utility model is as follows: First, the staff turns on the motor 4 and multiple electric cylinders 11 through the control cabinet 18. After the motor 4 starts, the output end drives the grinding roller 9 to rotate through the synchronous wheel 5 and the synchronous belt 6. After the multiple electric cylinders 11 start, they cause multiple pressing blocks 16 to move up and down alternately, that is, some of the pressing blocks 16 are in the upward state, while the other pressing blocks 16 are in the downward state.

[0046] After the device is started, the operator can feed small-to-medium volume medicinal materials in the form of dried flakes, blocks, or granules. The length of the feed inlet 8 matches the sealing cover 2 and is connected to multiple chutes 15, allowing for multi-station feeding through a single feed inlet 8 in conjunction with multiple chutes 15. When the electric cylinder 11 drives the pressing block 16 upward, the pressing block 16 no longer blocks the chutes 15, causing the dried flake medicinal materials in the chutes 15 to fall onto the grinding roller 9. When the electric cylinder 11 drives the pressing block 16 downward, the pressing block 16... Block 16 blocks the feed chute 15 to stop feeding, and the pressing block 16 presses down the dry sheet-like medicinal material, so that the dry sheet-like medicinal material is in close contact with the grinding roller 9 and is ground; during this period, the space of the grinding area is divided into multiple small spaces by the baffle ring 12 and the baffle plate 14 to prevent the dry sheet-like medicinal material from running horizontally from side to side when the pressing block 16 moves down, thus affecting the grinding efficiency; while the baffle block 13 can block the front and back of the grinding area to prevent the dry sheet-like medicinal material from running horizontally from front to back, thus affecting the grinding efficiency.

[0047] The fine granular powder of traditional Chinese medicine produced by grinding falls into the lower part of the main body 1 of the device. The fine granular powder is guided into the twin-screw rotary feeder 7 through the guide plate 17. Due to the material and surface treatment of the guide plate 17, the surface friction coefficient of the guide plate 17 is extremely low, which effectively avoids the phenomenon of fine granular powder of traditional Chinese medicine adhering to the top of the guide plate 17. When it is necessary to discharge the material, the operator turns on the twin-screw rotary feeder 7 through the control cabinet 18. The twin-screw rotary feeder 7 uses two intermeshing or parallel screws for conveying and metering. The volume of material pushed by each screw is basically constant. It has good adaptability to powders with extremely poor flowability, easy bridging, easy agglomeration, and high viscosity. It has strong forced conveying capacity and high precision, thus facilitating the effect of equal amount of medicine being discharged.

[0048] When cleaning the inside of the main body 1, the operator first loosens the nut on the swing bolt 3, then rotates the swing screw downwards to separate the swing screw and nut from the sealing cover 2, thereby ending the restriction on the sealing cover 2. After that, the operator can rotate the sealing cover 2 upwards to open it, so that the operator can clean the inside of the main body 1, the inside of the sealing cover 2, and the grinding roller 9. The structure is simple and the operation is convenient. After cleaning, the sealing cover 2 can be reinstalled by simply reversing the operation.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A traditional Chinese medicine grinding device with equal dispensing function, comprising a main body (1), characterized in that: The device body (1) is connected to a sealing cover (2) at the top, and a feed inlet (8) is fixed at the top of the sealing cover (2). A bracket (10) is connected to both sides of the top of the sealing cover (2), and an electric cylinder (11) is installed at the top of the bracket (10). A pressure block (16) is connected to the output end of the electric cylinder (11). A stop block (13) and a baffle (14) are connected to the upper part of the inside of the sealing cover (2). A chute (15) is opened on the outer surface of the stop block (13), the top of the stop block (13), and the top of the sealing cover (2). A grinding roller (9) is connected between the device body (1) and the sealing cover (2), and a retaining ring (12) is sleeved on the outside of the grinding roller (9).

2. The traditional Chinese medicine grinding device with equal dispensing function according to claim 1, characterized in that: Multiple electric cylinders (11), retaining rings (12), retaining blocks (13), baffles (14) and pressing blocks (16) are provided, and multiple electric cylinders (11), retaining rings (12), retaining blocks (13), baffles (14) and pressing blocks (16) are distributed at equal intervals.

3. The traditional Chinese medicine grinding device with equal dispensing function according to claim 2, characterized in that: The plurality of retaining rings (12) correspond to the plurality of baffles (14), and the plurality of pressing blocks (16) correspond to the areas of the grinding roller (9) where the retaining rings (12) are not provided.

4. The traditional Chinese medicine grinding device with equal dispensing function according to claim 3, characterized in that: The multiple retaining rings (12) and multiple retaining blocks (13) are staggered.

5. The traditional Chinese medicine grinding device with equal dispensing function according to claim 2, characterized in that: The feed inlet (8) is connected to multiple chutes (15), and the bottom of the chutes (15) is sloping.

6. The traditional Chinese medicine grinding device with equal dispensing function according to claim 1, characterized in that: A motor (4) is installed on one side of the main body (1) of the device, and a synchronous pulley (5) is connected to the output end of the motor (4) and one end of the grinding roller (9). A synchronous belt (6) is connected between the two synchronous pulleys (5). A twin-screw rotary feeder (7) is installed at the bottom of the main body (1). A control cabinet (18) is installed on one side of the outer surface of the main body (1).

7. The traditional Chinese medicine grinding device with equal dispensing function according to claim 1, characterized in that: The sealing cover (2) is rotatably connected to the device body (1) via a hinge, and a swing bolt (3) is provided between the sealing cover (2) and the device body (1). The swing bolt (3) is rotatably connected to the device body (1), and the nut of the swing bolt (3) is detachably connected to the sealing cover (2).

8. The traditional Chinese medicine grinding device with equal dispensing function according to claim 1, characterized in that: The device body (1) has a guide plate (17) fixed inside the lower part, and the inside of the guide plate (17) is sloping all around.

9. The traditional Chinese medicine grinding device with equal dispensing function according to claim 8, characterized in that: The guide plate (17) is made of 316L stainless steel and the surface of the guide plate (17) is mirror polished or coated with food-grade PTFE coating.