Traditional Chinese medicine grinding device

Abstract

The present application relates to the technical field of traditional Chinese medicine crushing, and particularly relates to a traditional Chinese medicinal material grinding device, which comprises a grinding table, a rolling grinding mechanism, a vibrating screening mechanism and a powder lifting mechanism, a cylindrical table is formed at the center of the grinding table, an outer edge table is formed at the outer edge of the grinding table, an annular grinding groove is arranged between the cylindrical table and the outer edge table, a main rotating shaft is arranged on the cylindrical table, the rolling grinding mechanism comprises a stone wheel, the vibrating screening mechanism comprises a sector-shaped frame, a sector-shaped sieve plate, a sector-shaped discharging plate, a vibration generating part and a buffer, an annular material cavity is formed between the sector-shaped sieve plate and the sector-shaped frame, the powder lifting mechanism comprises a suction pipe, a centrifugal fan and a buffer tank, the vibrating screening mechanism and the grinding table of the device are independently arranged, so that the bottom wall of the grinding table can be thickened when the grinding table is processed, the bottom wall of the grinding table is prevented from being damaged due to long-term grinding of the stone wheel, and at the same time, the corresponding sector-shaped sieve plate can be reduced in thickness when the vibrating screening mechanism is processed, so that the powder can be conveniently discharged.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine pulverization technology, specifically to a traditional Chinese medicine grinding device. Background Technology

[0002] Traditional Chinese medicine (TCM) pulverization is the process of crushing large pieces of solid TCM into particles or powder of appropriate fineness using mechanical force or other methods. TCM pulverization has the following advantages:

[0003] Firstly, the increased surface area of ​​pulverized Chinese medicine facilitates its dissolution and absorption, thereby improving its bioavailability.

[0004] Secondly, pulverized Chinese medicine is easier to mix and take, improving the convenience of medication for patients;

[0005] Third, pulverizing helps the active ingredients in medicinal materials dissolve or leach out more quickly, thus maximizing their efficacy;

[0006] Fourth, the pulverized Chinese medicine can be prepared into various dosage forms such as suspension, powder, tablet, pill, and capsule to meet the medication needs of different patients.

[0007] Among them, the development of modern technology has provided new technical means for the production of traditional Chinese medicine powders, such as ultra-micro pulverization technology, spray drying technology, and freeze drying technology. These technologies can improve the fineness, stability, and bioavailability of drugs, thereby improving the quality and efficacy of powders.

[0008] It is well known to those skilled in the art that drug pulverization is a crucial step in the preparation of powders. To obtain more standardized powders, those skilled in the art have made a series of improvements to existing drug grinding equipment. For example, invention patent CN111318324B discloses a traditional Chinese medicine pulverizer based on hexagonal wheels. The pulverizer body is connected via support columns to hexagonal rollers embedded in and traveling along a track; it features small size, light weight, simple operation, and ease of use. However, the aforementioned patent also has the following drawbacks:

[0009] Firstly, during the grinding process, the herbal powder blocks repeatedly hammer the inner wall of the grinding cylinder to pulverize the herbs. However, in the aforementioned patent, the herbal powder outlet is directly opened on the grinding cylinder. During the sieving process, the grinding cylinder wall with the herbal powder outlet needs to be relatively thin so that the powder can pass through smoothly. However, the inner wall that is too thin will become thinner due to the hammering of the herbal powder blocks, eventually leading to damage to the inner wall of the grinding cylinder.

[0010] Secondly, in the aforementioned patent, the crushing cylinder and the feeding hopper are directly mounted on the crusher base. The crushing cylinder and the feeding hopper are only connected to the first drive motor through a horizontal eccentric crank drive mechanism. The crushing cylinder and the feeding hopper are not limited by external limiting parts. As a result, the crushing cylinder and the feeding hopper will tilt left and right during the reciprocating lateral movement, eventually causing the entire crushing device to tip over.

[0011] To address the aforementioned problems, this invention provides a traditional Chinese medicine grinding device. Summary of the Invention

[0012] Therefore, it is necessary to provide a Chinese herbal medicine grinding device to address the existing technical problems.

[0013] To solve the problems of existing technologies, the technical solution adopted by this invention is as follows: a Chinese herbal medicine grinding device, including a grinding table, a rolling grinding mechanism, a vibrating sieving mechanism, and a powder lifting mechanism. A vertically upward-facing columnar platform is formed at the center of the grinding table, and a vertically upward-facing outer edge platform is formed at the outer edge of the grinding table. An annular grinding groove is formed between the columnar platform and the outer edge platform. A vertically oriented main rotating shaft is rotatably mounted on the columnar platform. The rolling grinding mechanism includes a stone wheel that travels within the annular grinding groove and is connected to the main rotating shaft. The vibrating sieving mechanism includes a fan-shaped frame, a fan-shaped sieve plate, a fan-shaped discharge plate, a vibration generator, and a buffer. The fan-shaped frame is connected to the main rotating shaft, and the fan-shaped sieve plate is positioned above the annular grinding groove. The fan-shaped sieve plate is connected to the fan-shaped frame via the buffer. A flat, annular material cavity is formed between the plate and the fan-shaped frame. Air inlets and discharge outlets are located at both ends of the annular material cavity. Air inlets are equipped with blowers, and vibration generators are mounted on the fan-shaped screen plate. A fan-shaped discharge plate is inclined and connected to the fan-shaped frame, positioned below the fan-shaped screen plate. A retaining ring is located on the outer edge platform, with a discharge outlet on the retaining ring. The powder lifting mechanism includes a suction pipe, a centrifugal fan, and a buffer tank. The suction pipe is located between the stone wheel and the fan-shaped frame and is connected to the main rotating shaft. The air inlets face the suction pipe, and the discharge outlet faces the stone wheel. The buffer tank is mounted above the fan-shaped frame and has a discharge pipe for discharging powder into the annular material cavity. The centrifugal fan is located above the suction pipe and connects the suction pipe and the buffer tank.

[0014] Furthermore, the fan-shaped frame includes a fan-shaped top plate, an outer arc plate, and an inner arc plate. The fan-shaped top plate is horizontal, while the outer and inner arc plates are both vertical. The outer and inner arc plates are fixedly connected to the outer and inner edges of the fan-shaped top plate, respectively. The fan-shaped screen plate is located directly below the fan-shaped top plate. An annular material cavity is formed between the fan-shaped screen plate, the fan-shaped top plate, the outer arc plate, and the inner arc plate. Two horizontal strip-shaped support rods are fixedly mounted on the main rotating shaft. The included angle between the two strip-shaped support rods is 90°. The two ends of the fan-shaped top plate are fixedly connected to the two strip-shaped support rods, respectively.

[0015] Furthermore, both ends of the fan-shaped top plate are provided with horizontal strip rods. The outer wall of the outer arc plate has two No. 1 convex rings distributed vertically at intervals, and the outer wall of the inner arc plate has two No. 2 convex rings distributed vertically at intervals. The buffer includes two sets of elastic connecting parts respectively provided on the two strip rods. Each set of elastic connecting parts includes two pairs of springs. Each pair of springs is provided at both ends of the corresponding strip rod, and each pair of springs is located above and below the strip rod. Each spring near the outer arc plate is fixedly connected to the end of the corresponding No. 1 convex ring and the strip rod, and each spring near the inner arc plate is fixedly connected to the end of the corresponding No. 2 convex ring and the strip rod. Both ends of the fan-shaped screen plate are fixedly connected to the two strip rods respectively.

[0016] Furthermore, the vibration generating component includes a first ring, a second ring, and two pairs of rollers. The first ring is coaxially fixed on the top of the columnar platform, and the second ring is coaxially fixed on the top of the outer edge platform. The top of the first ring has several first protrusions equidistantly distributed along the circumference of the first ring, and the top of the second ring has several second protrusions equidistantly distributed along the circumference of the second ring. The two pairs of rollers are respectively mounted on two strip rods, and each pair of rollers is rotatably connected to the two ends of the corresponding strip rod, and each pair of rollers rests on the first ring and the second ring.

[0017] Furthermore, a No. 1 support ring is coaxially formed on the top of the baffle ring, and a No. 2 support ring is coaxially formed on the top of the columnar platform. The No. 1 convex ring located below rests downward on the top of the No. 1 support ring, and the No. 2 convex ring located below rests downward on the top of the No. 2 support ring.

[0018] Furthermore, the two strip-shaped support rods are respectively close to the air inlet and the discharge outlet. The blower includes a strip-shaped ventilation shell and a connecting nozzle. The strip-shaped ventilation shell is horizontally fixed to the strip-shaped support rod close to the air inlet. A horizontal ventilation groove is opened inside the strip-shaped ventilation shell. Several strip-shaped air outlets connected to the ventilation groove are opened on the side of the strip-shaped ventilation shell facing the air inlet. The connecting nozzle is fixed to one end of the strip-shaped ventilation shell facing the outer edge arc plate and is connected to the ventilation groove.

[0019] Furthermore, the suction tube includes a straight tube, a bent tube, and a suction head. The upper end of the straight tube is provided with a horizontal connecting rod, which connects the straight tube to the main rotating shaft. The bent tube is formed at the lower end of the straight tube, and the suction head is fixed at the lower end of the bent tube. The lower end of the straight tube is fixed with two symmetrical horizontal rods, and each horizontal rod has an arc-shaped slider formed at its end. The two arc-shaped sliders are respectively placed on the first support ring and the second support ring.

[0020] Furthermore, the centrifugal fan includes a volute, an impeller, and a motor. An air inlet is provided on one side of the volute, and an air outlet is formed on the peripheral wall of the volute. The air inlet is fixedly connected to the upper end of the straight pipe, and the air outlet is connected to the buffer tank. The impeller rotates inside the volute, and the motor is vertically mounted on the volute, with the motor's output end coaxially fixedly connected to the impeller.

[0021] Furthermore, a support frame is provided above the fan-shaped top plate, which is fixedly connected to the outer and inner arc-shaped plates. The buffer tank is fixed on the support frame, and the lower end of the buffer tank gradually tapers into a cone shape. The discharge pipe is vertical and fixedly connected to the lower end of the buffer tank, and the lower end of the discharge pipe passes downward through the fan-shaped top plate.

[0022] The beneficial effects of this invention compared to the prior art are:

[0023] Firstly, the vibrating screening mechanism and the grinding table of this device are set up independently. This allows the bottom wall of the grinding table to be thickened during processing to prevent damage to the bottom wall of the grinding table due to long-term grinding by the stone wheel. At the same time, the thickness of the corresponding fan-shaped screen plate can be reduced during processing of the vibrating screening mechanism to facilitate the falling of powder.

[0024] Secondly, this device can perform cyclic grinding of Chinese herbal raw materials in the annular grinding groove. Through cyclic grinding, all Chinese herbal raw materials in the annular grinding groove can be ground into small powder particles without secondary processing, thereby improving grinding efficiency.

[0025] Thirdly, the device has a discharge port on the baffle ring. During the rotation of the fan-shaped frame, if the fan-shaped discharge plate does not correspond to the discharge port, the powder on the fan-shaped discharge plate will be blocked by the baffle ring. Only when the fan-shaped discharge plate rotates to correspond to the discharge port can the powder on the fan-shaped discharge plate be discharged through the discharge port, thereby realizing the centralized collection of powder and improving the portability of powder collection. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 yes Figure 1 A magnified view of the area indicated by A1 in the diagram;

[0028] Figure 3 This is a three-dimensional structural diagram of the rolling grinding mechanism and the vibrating screening mechanism. Figure 1 ;

[0029] Figure 4 yes Figure 3 The enlarged view of the area indicated by A2 in the diagram;

[0030] Figure 5 This is a three-dimensional structural diagram of the rolling grinding mechanism and the vibrating screening mechanism. Figure 2 ;

[0031] Figure 6 This is a three-dimensional structural diagram of the vibrating screening mechanism;

[0032] Figure 7 yes Figure 6 The enlarged view of the area indicated in A3;

[0033] Figure 8 yes Figure 6 The enlarged view shown in section A4;

[0034] Figure 9 This is a top view of the vibrating screening mechanism;

[0035] Figure 10 yes Figure 9 Sectional view along line AA;

[0036] Figure 11 This is a three-dimensional structural diagram of the fan-shaped frame;

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of a fan-shaped sieve plate;

[0038] Figure 13 This is a three-dimensional structural diagram of the powder lifting mechanism;

[0039] Figure 14 This is an exploded 3D structural diagram of a centrifugal fan;

[0040] Figure 15 This is a three-dimensional structural diagram of the buffer tank;

[0041] Figure 16 This is a three-dimensional structural diagram of the blower component;

[0042] Figure 17 This is a top view of the blower component;

[0043] Figure 18 yes Figure 17 Sectional view along line BB.

[0044] The diagram is labeled as follows: 1. Grinding table; 2. Columnar table; 3. Outer edge table; 4. Annular grinding groove; 5. Main rotating shaft; 6. Stone wheel; 7. Fan-shaped frame; 8. Fan-shaped sieve plate; 9. Fan-shaped discharge plate; 10. Annular material chamber; 11. Air inlet; 12. Discharge port; 13. Baffle ring; 14. Unloading port; 15. Suction pipe; 16. Buffer tank; 17. Discharge pipe; 18. Fan-shaped top plate; 19. Outer edge arc plate; 20. Inner edge arc plate; 21. Strip support rod; 22. Strip rod; 23. No. 1 convex ring; 24. No. 2 25. Spring; 26. Ring No. 1; 27. Ring No. 2; 28. Roller; 29. ​​Protrusion No. 1; 30. Protrusion No. 2; 31. Support Ring No. 1; 32. Support Ring No. 2; 33. Strip-shaped ventilation shell; 34. Connecting nozzle; 35. Ventilation slot; 36. Strip-shaped air outlet; 37. Straight pipe; 38. Bend pipe; 39. Suction head; 40. Connecting rod; 41. Horizontal rod; 42. Arc-shaped slider; 43. Volute; 44. Impeller; 45. Motor; 46. Air inlet; 47. Air outlet; 48. Support frame. Detailed Implementation

[0045] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0046] refer to Figures 1 to 18 The illustrated Chinese herbal medicine grinding device includes a grinding table 1, a rolling grinding mechanism, a vibrating sieving mechanism, and a powder lifting mechanism. A vertically upward-facing columnar platform 2 is formed at the center of the grinding table 1, and a vertically upward-facing outer edge platform 3 is formed at the outer edge of the grinding table 1. An annular grinding groove 4 is formed between the columnar platform 2 and the outer edge platform 3. A vertically oriented main rotating shaft 5 rotates on the columnar platform 2. The rolling grinding mechanism includes a stone wheel 6 that travels within the annular grinding groove 4 and is connected to the main rotating shaft 5. The vibrating sieving mechanism includes a fan-shaped frame 7, a fan-shaped sieve plate 8, a fan-shaped discharge plate 9, a vibration generator, and a buffer component. The fan-shaped frame 7 (e.g., ...) Figure 11 (As shown) is connected to the main rotating shaft 5, and the fan-shaped screen plate 8 (as shown) is connected to the main rotating shaft 5. Figure 12 As shown, the sector-shaped screen plate 8 is located above the annular grinding groove 4. It is connected to the sector-shaped frame 7 via a buffer element, forming a flat annular material cavity 10 between the sector-shaped screen plate 8 and the sector-shaped frame 7. The annular material cavity 10 has an air inlet 11 and a discharge outlet 12 at each end (in conjunction with...). Figure 3 , Figure 5 and Figure 10The air inlet 11 is equipped with a blower, and the vibration generator is located on the fan-shaped screen plate 8. The fan-shaped discharge plate 9 is inclined and connected to the fan-shaped frame 7, and the fan-shaped discharge plate 9 is located below the fan-shaped screen plate 8. A baffle ring 13 is provided on the outer edge platform 3, and the baffle ring 13 is provided with a discharge port 14. The powder lifting mechanism includes a suction pipe 15, a centrifugal fan, and a buffer tank 16. The suction pipe 15 is located between the stone wheel 6 and the fan-shaped frame 7, and the suction pipe 15 is connected to the main rotating shaft 5. The air inlet 11 faces the suction pipe 15, the discharge port 12 faces the stone wheel 6, and the buffer tank 16 is mounted above the fan-shaped frame 7. The buffer tank 16 (e.g., Figure 15 The device shown is equipped with a discharge pipe 17 for discharging powder into the annular material chamber 10. A centrifugal fan is located above the suction pipe 15, and the centrifugal fan connects the suction pipe 15 and the buffer tank 16.

[0047] The raw materials of traditional Chinese medicine are poured into the annular grinding groove 4, and then the main rotating shaft 5 begins to rotate slowly. The main rotating shaft 5 of this device rotates counterclockwise by default (e.g., Figure 1 As shown, when the main rotating shaft 5 rotates, the stone wheel 6 will roll around the main rotating shaft 5 in the annular grinding groove 4. At this time, the rolling stone wheel 6 grinds the Chinese herbal raw materials in the annular grinding groove 4 into powder. After that, the centrifugal fan starts, which causes the suction pipe 15 to generate suction. In this way, the powder in the annular grinding groove 4 will rise into the suction pipe 15. After passing through the centrifugal fan, the powder in the suction pipe 15 will fall into the buffer tank 16. During this process, the kinetic energy of the powder is reduced by the buffer tank 16. The powder falls slowly and eventually enters the annular material chamber 10 through the discharge pipe 17. Once inside the annular material chamber 10, the vibration generator causes the fan-shaped sieve plate 8 to vibrate. During this process, the vibrating fan-shaped sieve plate 8 sieves the powder. Small particles fall through the fan-shaped sieve plate 8 into the fan-shaped discharge plate 9, while large particles are blocked by the fan-shaped sieve plate 8. Small particles falling into the fan-shaped discharge plate 9 are blocked by the baffle ring 13 on the grinding table 1 and cannot be discharged. When the main rotating shaft 5 rotates to the point where the fan-shaped discharge plate 9 corresponds to the discharge port 14, small particles of powder will be discharged through the discharge port 14. During the vibration of the fan-shaped screen plate 8, the blower will blow gas into the annular material chamber 10. At this time, the flowing gas will drive the powder in the annular material chamber 10 to the discharge port 12. Finally, the large particles of powder blocked by the fan-shaped screen plate 8 will fall back into the annular grinding groove 4 through the discharge port 12. After that, the stone wheel 6 will perform secondary grinding on the powder discharged from the discharge port 12. In the grinding process, when the raw materials of traditional Chinese medicine are poured into the annular grinding trough 4, the raw materials are poured behind the suction pipe 15. This ensures that when the main rotating shaft 5 rotates, the suction pipe 15 will not suck the raw materials of traditional Chinese medicine into the buffer tank 16. In summary, as the main rotating shaft 5 continues to rotate, the raw materials of traditional Chinese medicine in the annular grinding trough 4 will be circulated and ground by the stone wheel 6 until all the raw materials of traditional Chinese medicine are turned into small particles of powder and discharged from the discharge port 14.

[0048] To demonstrate the specific structure of the fan-shaped frame 7, the following features were set:

[0049] The fan-shaped frame 7 includes a fan-shaped top plate 18, an outer arc-shaped plate 19, and an inner arc-shaped plate 20. The fan-shaped top plate 18 is horizontal, while the outer arc-shaped plate 19 and the inner arc-shaped plate 20 are both vertical (e.g., ...). Figure 11 As shown, the outer arc plate 19 and the inner arc plate 20 are fixedly connected to the outer and inner edges of the fan-shaped top plate 18, respectively. The fan-shaped screen plate 8 is located directly below the fan-shaped top plate 18. The annular material cavity 10 is formed between the fan-shaped screen plate 8, the fan-shaped top plate 18, the outer arc plate 19, and the inner arc plate 20. Two horizontal strip rods 21 are fixedly mounted on the main rotating shaft 5. The included angle between the two strip rods 21 is 90°. The two ends of the fan-shaped top plate 18 are fixedly connected to the two strip rods 21, respectively.

[0050] When the main rotating shaft 5 rotates, the two strip support rods 21 will rotate synchronously, thereby driving the fan-shaped top plate 18, which is fixed to the two strip support rods 21, to revolve around the main rotating shaft 5. When the fan-shaped top plate 18 revolves, it will simultaneously drive the outer arc plate 19 and the inner arc plate 20 to rotate together, ultimately realizing the rotation of the entire fan-shaped frame 7. During the revolving process of the fan-shaped frame 7, the powder falling into the annular material cavity 10 will be screened by the vibrating fan-shaped sieve plate 8. Large particles of powder that are not screened out will be discharged again into the annular grinding groove 4 through the discharge port 12, and then ground a second time by the stone wheel 6, ultimately realizing the cyclic grinding of Chinese medicine raw materials.

[0051] To demonstrate the specific structure of the buffer, the following features were set:

[0052] Both ends of the fan-shaped top plate 18 are provided with horizontal strip rods 22. Two first-order convex rings 23 are formed on the outer wall of the outer edge arc plate 19, spaced vertically. Two second-order convex rings 24 are formed on the outer wall of the inner edge arc plate 20, spaced vertically. The buffer includes two sets of elastic connecting members respectively provided on the two strip rods 22. Each set of elastic connecting members includes two pairs of springs 25 (e.g., ...). Figure 7 and Figure 8 As shown, each pair of springs 25 is respectively located at both ends of the corresponding strip rod 22, and each pair of springs 25 is located above and below the strip rod 22. Each spring 25 near the outer edge arc plate 19 is fixedly connected to the corresponding first convex ring 23 and the end of the strip rod 22. Each spring 25 near the inner edge arc plate 20 is fixedly connected to the corresponding second convex ring 24 and the end of the strip rod 22. The two ends of the fan-shaped screen plate 8 are fixedly connected to the two strip rods 22 respectively.

[0053] Before installing the fan-shaped screen plate 8, two strip rods 22 are installed at both ends of the fan-shaped top plate 18. During this process, each strip rod 22 is placed horizontally between the outer arc plate 19 and the inner arc plate 20. One end of each strip rod 22 is connected to two No. 1 convex rings 23 through two springs 25, and the other end of each strip rod 22 is connected to two No. 2 convex rings 24 through two springs 25. Then, the two ends of the fan-shaped screen plate 8 are fixed to the two strip rods 22. When the fan-shaped screen plate 8 vibrates, the vibration of the fan-shaped screen plate 8 is buffered by the two floating strip rods 22, and finally the vibration screening function of the fan-shaped screen plate 8 is realized.

[0054] To demonstrate the specific structure of the vibration generator, the following features were incorporated:

[0055] The vibration generator includes a first ring 26, a second ring 27, and two pairs of rollers 28. The first ring 26 (e.g.) Figure 4 As shown, the second ring 27 is coaxially fixed to the top of the columnar platform 2. Figure 2 As shown, the ring 26 is coaxially fixed on the top of the outer edge platform 3. The top of the first ring 26 has several first protrusions 29 that are equidistantly distributed along the circumference of the first ring 26. The top of the second ring 27 has several second protrusions 30 that are equidistantly distributed along the circumference of the second ring 27. Two pairs of rollers 28 are respectively set on two strip rods 22. Each pair of rollers 28 is rotatably connected to the two ends of the corresponding strip rod 22, and each pair of rollers 28 is respectively placed on the first ring 26 and the second ring 27.

[0056] When the sector frame 7 revolves around the main rotating shaft 5, the sector frame 7 will drive the two strip rods 22 to rotate synchronously. During this process, a pair of rollers 28 on each strip rod 22 will roll on the first ring 26 and the second ring 27 respectively. Then, through the action of the first protrusion 29 and the second protrusion 30, the rollers 28 can float up and down when rolling, so that the strip rods 22 can vibrate during rotation. Finally, the sector screen plate 8 connected to the two strip rods 22 will screen the powder falling into the annular material cavity 10 through vibration.

[0057] To improve the stability of the sector frame 7 during revolution, the following features were designed:

[0058] The top of the baffle ring 13 is coaxially formed with a first support ring 31, and the top of the columnar platform 2 is coaxially formed with a second support ring 32. The first convex ring 23 located below is placed on top of the first support ring 31, and the second convex ring 24 located below is placed on top of the second support ring 32.

[0059] When the main rotating shaft 5 drives the sector frame 7 to rotate, the first convex ring 23 located at the bottom will slide on the first support ring 31, and the second convex ring 24 located at the bottom will slide on the second support ring 32. In this way, the stability of the sector frame 7 during revolution is improved by the support of the first support ring 31 and the second support ring 32.

[0060] To demonstrate the specific structure of the blower component, the following features were incorporated:

[0061] Two strip-shaped support rods 21 are located near the air inlet 11 and the discharge outlet 12, respectively. The blower includes a strip-shaped ventilation shell 33 and a connecting nozzle 34 (e.g., Figure 16 As shown, the strip-shaped ventilation shell 33 is horizontally fixed to the strip-shaped support rod 21 near the air inlet 11. The strip-shaped ventilation shell 33 has a horizontal ventilation groove 35. The side of the strip-shaped ventilation shell 33 facing the air inlet 11 has several strip-shaped air inlets 36 that are connected to the ventilation groove 35. The connecting nozzle 34 is fixed to one end of the strip-shaped ventilation shell 33 facing the outer edge arc plate 19, and the connecting nozzle 34 is connected to the ventilation groove 35.

[0062] The connecting nozzle 34 is used to connect an external air source (not shown in the figure). Since the strip ventilation shell 33 is connected to the fan-shaped frame 7, the external air source needs to inject gas into the strip ventilation shell 33 through dynamic air supply. After the gas is injected into the strip ventilation shell 33 through the connecting nozzle 34, the gas will enter the ventilation groove 35. After that, the gas will be discharged to the air outlet 11 through several strip air outlets 36. Finally, the gas entering the annular material chamber 10 through the air outlet 11 will blow the powder on the fan-shaped screen plate 8 to the discharge port 12.

[0063] To demonstrate how the suction pipe 15 is connected to the main rotating shaft 5, the following features are provided:

[0064] The suction tube 15 includes a straight tube 37, a bent tube 38, and a suction head 39. The upper end of the straight tube 37 is provided with a horizontal connecting rod 40 (e.g., Figure 1 and Figure 13 As shown, the connecting rod 40 connects the straight tube 37 to the main rotating shaft 5. The bent tube 38 is formed at the lower end of the straight tube 37. The suction head 39 is fixed at the lower end of the bent tube 38. Two symmetrical horizontal rods 41 are fixed at the lower end of the straight tube 37. An arc-shaped slider 42 is formed at the end of each horizontal rod 41. The two arc-shaped sliders 42 are respectively placed on the first support ring 31 and the second support ring 32.

[0065] When the main rotating shaft 5 rotates, the main rotating shaft 5 will drive the suction pipe 15 to rotate together through the connecting rod 40, thereby realizing the revolution of the suction pipe 15. When the suction pipe 15 revolves, the powder falling into the annular grinding groove 4 will be sucked upward into the bent pipe 38 through the suction head 39. After that, the powder will pass through the straight pipe 37 and the centrifugal fan in sequence and fall into the buffer tank 16.

[0066] To demonstrate the specific structure of the centrifugal fan, the following features were included:

[0067] The centrifugal fan includes a volute 43, an impeller 44, and a motor 45. An air inlet 46 is provided on one side of the volute 43, and an exhaust port 47 is formed on the peripheral wall of the volute 43. The air inlet 46 is fixedly connected to the upper end of a straight pipe 37, and the exhaust port 47 is connected to a buffer tank 16. The impeller 44 (e.g., Figure 14 As shown, the motor 45 rotates inside the volute 43 and is vertically mounted on the volute 43. The output end of the motor 45 is coaxially and fixedly connected to the impeller 44.

[0068] When the motor 45 starts, it will drive the impeller 44 to rotate at high speed, thereby generating a large amount of suction at the air inlet 46 of the volute 43. At this time, the powder in the annular grinding groove 4 will be sucked upward into the suction pipe 15. After that, the powder will enter the volute 43. The powder in the volute 43 will be thrown towards the exhaust port 47 by centrifugal force. Finally, the powder will fall into the buffer tank 16 through the exhaust port 47.

[0069] To demonstrate how the buffer tank 16 is mounted above the fan-shaped frame 7, the following features are provided:

[0070] Above the fan-shaped top plate 18 is a support frame 48 that is fixedly connected to the outer arc plate 19 and the inner arc plate 20. The buffer tank 16 is fixed on the support frame 48. The lower end of the buffer tank 16 gradually tapers into a cone shape. The discharge pipe 17 is vertical and fixedly connected to the lower end of the buffer tank 16. The lower end of the discharge pipe 17 passes downward through the fan-shaped top plate 18.

[0071] When the powder falls into the buffer tank 16, it will fall downward along the buffer tank 16 and into the annular material chamber 10 through the discharge pipe 17. After the powder falls into the annular material chamber 10, with the vibration of the fan-shaped screen plate 8, the fan-shaped screen plate 8 will screen the powder. Small particles of powder will fall directly through the fan-shaped screen plate 8 into the fan-shaped discharge plate 9, while large particles of powder will be discharged back into the annular grinding groove 4 through the discharge port 12 through the air blower.

[0072] Working principle:

[0073] The raw materials of traditional Chinese medicine are poured into the annular grinding groove 4, and then the main rotating shaft 5 begins to rotate slowly. The main rotating shaft 5 of this device rotates counterclockwise by default (e.g., Figure 1As shown, when the main rotating shaft 5 rotates, the stone wheel 6 will roll around the main rotating shaft 5 in the annular grinding groove 4. At this time, the rolling stone wheel 6 grinds the Chinese herbal raw materials in the annular grinding groove 4 into powder. After that, the centrifugal fan starts, which causes the suction pipe 15 to generate suction. In this way, the powder in the annular grinding groove 4 will rise into the suction pipe 15. After passing through the centrifugal fan, the powder in the suction pipe 15 will fall into the buffer tank 16. During this process, the kinetic energy of the powder is reduced by the buffer tank 16. The powder falls slowly and eventually enters the annular material chamber 10 through the discharge pipe 17. Once inside the annular material chamber 10, the vibration generator causes the fan-shaped sieve plate 8 to vibrate. During this process, the vibrating fan-shaped sieve plate 8 sieves the powder. Small particles fall through the fan-shaped sieve plate 8 into the fan-shaped discharge plate 9, while large particles are blocked by the fan-shaped sieve plate 8. Small particles falling into the fan-shaped discharge plate 9 are blocked by the baffle ring 13 on the grinding table 1 and cannot be discharged. When the main rotating shaft 5 rotates to the point where the fan-shaped discharge plate 9 corresponds to the discharge port 14, small particles of powder will be discharged through the discharge port 14. During the vibration of the fan-shaped screen plate 8, the blower will blow gas into the annular material chamber 10. At this time, the flowing gas will drive the powder in the annular material chamber 10 to the discharge port 12. Finally, the large particles of powder blocked by the fan-shaped screen plate 8 will fall back into the annular grinding groove 4 through the discharge port 12. After that, the stone wheel 6 will perform secondary grinding on the powder discharged from the discharge port 12. In the grinding process, when the raw materials of traditional Chinese medicine are poured into the annular grinding trough 4, the raw materials are poured behind the suction pipe 15. This ensures that when the main rotating shaft 5 rotates, the suction pipe 15 will not suck the raw materials of traditional Chinese medicine into the buffer tank 16. In summary, as the main rotating shaft 5 continues to rotate, the raw materials of traditional Chinese medicine in the annular grinding trough 4 will be circulated and ground by the stone wheel 6 until all the raw materials of traditional Chinese medicine are turned into small particles of powder and discharged from the discharge port 14.

[0074] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A grinding device for traditional Chinese medicinal materials, characterized in that, The system includes a grinding table (1), a rolling grinding mechanism, a vibrating screening mechanism, and a powder lifting mechanism. A vertically upward-pointing columnar platform (2) is formed at the center of the grinding table (1), and a vertically upward-pointing outer edge platform (3) is formed at the outer edge of the grinding table (1). An annular grinding groove (4) is formed between the columnar platform (2) and the outer edge platform (3). A vertically oriented main rotating shaft (5) is rotatably mounted on the columnar platform (2). The rolling grinding mechanism includes a stone wheel (6) that travels within the annular grinding groove (4). Connected to the main rotating shaft (5), the vibrating screening mechanism includes a fan-shaped frame (7), a fan-shaped screen plate (8), a fan-shaped discharge plate (9), a vibration generator, and a buffer. The fan-shaped frame (7) is connected to the main rotating shaft (5), and the fan-shaped screen plate (8) is located above the annular grinding groove (4). The fan-shaped screen plate (8) is connected to the fan-shaped frame (7) through the buffer. A flat annular material cavity (10) is formed between the fan-shaped screen plate (8) and the fan-shaped frame (7). Air ports are provided at both ends of the annular material cavity (10). (11) and discharge port (12), the air inlet (11) is equipped with a blower, the vibration generator is located on the fan-shaped screen plate (8), the fan-shaped drop plate (9) is inclined and connected to the fan-shaped frame (7), and the fan-shaped drop plate (9) is located below the fan-shaped screen plate (8), the outer edge platform (3) is equipped with a baffle ring (13), the baffle ring (13) is equipped with a discharge port (14), the powder lifting mechanism includes a suction pipe (15), a centrifugal fan and a buffer tank (16), the suction pipe (15) Located between the stone wheel (6) and the fan-shaped frame (7), with the suction pipe (15) connected to the main rotating shaft (5), the air port (11) facing the suction pipe (15), the discharge port (12) facing the stone wheel (6), the buffer tank (16) mounted above the fan-shaped frame (7), the buffer tank (16) having a discharge pipe (17) for discharging powder into the annular material chamber (10), the centrifugal fan mounted above the suction pipe (15), and the centrifugal fan connecting the suction pipe (15) and the buffer tank (16).

2. The Chinese herbal medicine grinding device according to claim 1, characterized in that, The fan-shaped frame (7) includes a fan-shaped top plate (18), an outer arc plate (19), and an inner arc plate (20). The fan-shaped top plate (18) is horizontal, while the outer arc plate (19) and the inner arc plate (20) are both vertical. The outer arc plate (19) and the inner arc plate (20) are fixedly connected to the outer and inner edges of the fan-shaped top plate (18), respectively. The fan-shaped screen plate (8) is located directly below the fan-shaped top plate (18). The annular material cavity (10) is formed between the fan-shaped screen plate (8), the fan-shaped top plate (18), the outer arc plate (19), and the inner arc plate (20). Two horizontal strip rods (21) are fixedly mounted on the main rotating shaft (5). The included angle between the two strip rods (21) is 90°. The two ends of the fan-shaped top plate (18) are fixedly connected to the two strip rods (21), respectively.

3. The Chinese herbal medicine grinding device according to claim 2, characterized in that, Both ends of the fan-shaped top plate (18) are provided with horizontal strip rods (22). The outer wall of the outer arc plate (19) is formed with two first convex rings (23) spaced vertically, and the outer wall of the inner arc plate (20) is formed with two second convex rings (24) spaced vertically. The buffer includes two sets of elastic connecting parts respectively provided on the two strip rods (22). Each set of elastic connecting parts includes two pairs of springs (25), and each pair of springs (25) is respectively provided on the corresponding strip rod. (22) has two ends, and each pair of springs (25) is located above and below the strip rod (22) respectively. Each spring (25) near the outer edge arc plate (19) is fixedly connected to the end of the corresponding first convex ring (23) and the strip rod (22) respectively. Each spring (25) near the inner edge arc plate (20) is fixedly connected to the end of the corresponding second convex ring (24) and the strip rod (22) respectively. The two ends of the fan-shaped sieve plate (8) are fixedly connected to the two strip rods (22) respectively.

4. The Chinese herbal medicine grinding device according to claim 3, characterized in that, The vibration generator includes a first ring (26), a second ring (27), and two pairs of rollers (28). The first ring (26) is coaxially fixed on the top of the columnar platform (2), and the second ring (27) is coaxially fixed on the top of the outer edge platform (3). The top of the first ring (26) has several first protrusions (29) equidistantly distributed along the circumference of the first ring (26), and the top of the second ring (27) has several second protrusions (30) equidistantly distributed along the circumference of the second ring (27). The two pairs of rollers (28) are respectively mounted on two strip rods (22). Each pair of rollers (28) is rotatably connected to the two ends of the corresponding strip rod (22), and each pair of rollers (28) is respectively mounted on the first ring (26) and the second ring (27).

5. A traditional Chinese medicine grinding device according to claim 3, characterized in that, The top of the baffle ring (13) is coaxially formed with a first support ring (31), and the top of the columnar platform (2) is coaxially formed with a second support ring (32). The first convex ring (23) located below is placed on the top of the first support ring (31), and the second convex ring (24) located below is placed on the top of the second support ring (32).

6. The Chinese herbal medicine grinding device according to claim 2, characterized in that, Two strip-shaped support rods (21) are respectively close to the air inlet (11) and the discharge port (12). The blower includes a strip-shaped ventilation shell (33) and a connecting nozzle (34). The strip-shaped ventilation shell (33) is horizontally fixed to the strip-shaped support rod (21) close to the air inlet (11). A horizontal ventilation groove (35) is opened inside the strip-shaped ventilation shell (33). Several strip-shaped air inlets (36) connected to the ventilation groove (35) are opened on the side of the strip-shaped ventilation shell (33) facing the air inlet (11). The connecting nozzle (34) is fixed on one end of the strip-shaped ventilation shell (33) facing the outer edge arc plate (19), and the connecting nozzle (34) is connected to the ventilation groove (35).

7. A traditional Chinese medicine grinding device according to claim 5, characterized in that, The suction tube (15) includes a straight tube (37), a bent tube (38), and a suction head (39). The upper end of the straight tube (37) is provided with a horizontal connecting rod (40), which connects the straight tube (37) to the main rotating shaft (5). The bent tube (38) is formed at the lower end of the straight tube (37), and the suction head (39) is fixed at the lower end of the bent tube (38). The lower end of the straight tube (37) is fixed with two symmetrical horizontal rods (41). Each horizontal rod (41) has an arc-shaped slider (42) formed at its end. The two arc-shaped sliders (42) are respectively placed on the first support ring (31) and the second support ring (32).

8. A traditional Chinese medicine grinding device according to claim 7, characterized in that, The centrifugal fan includes a volute (43), an impeller (44), and a motor (45). An air inlet (46) is provided on one side of the volute (43), and an air outlet (47) is formed on the peripheral wall of the volute (43). The air inlet (46) is fixedly connected to the upper end of the straight pipe (37), and the air outlet (47) is connected to the buffer tank (16). The impeller (44) rotates inside the volute (43), and the motor (45) is vertically mounted on the volute (43). The output end of the motor (45) is coaxially fixedly connected to the impeller (44).

9. A traditional Chinese medicine grinding device according to claim 2, characterized in that, Above the fan-shaped top plate (18) is a support frame (48) that is fixed to the outer arc plate (19) and the inner arc plate (20). The buffer tank (16) is fixed on the support frame (48). The lower end of the buffer tank (16) gradually narrows into a cone shape. The discharge pipe (17) is vertical and fixed to the lower end of the buffer tank (16). The lower end of the discharge pipe (17) passes downward through the fan-shaped top plate (18).

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