Traditional Chinese medicinal material grinding device

Abstract

The invention relates to the technical field of traditional Chinese medicine smashing, in particular to a traditional Chinese medicine grinding device which comprises a grinding table, a rolling grinding mechanism, a vibration screening mechanism and a powder lifting mechanism, a columnar table is formed at the circle center of the grinding table, an outer edge table is formed at the outer edge of the grinding table, and an annular grinding groove is formed between the columnar table and the outer edge table; the cylindrical table is provided with a main rotating shaft, the rolling grinding mechanism comprises a stone wheel, the vibration screening mechanism comprises a fan-shaped frame, a fan-shaped screening plate, a fan-shaped blanking plate, a vibration generation piece and a buffer piece, an annular material cavity is formed between the fan-shaped screening plate and the fan-shaped frame, and the powder lifting mechanism comprises a material suction pipe, a centrifugal fan and a buffer tank. The vibration screening mechanism and the grinding table of the device are both independently arranged, so that when the grinding table is machined, the bottom wall of the grinding table can be thickened, the bottom wall of the grinding table is prevented from being damaged due to long-term grinding of a stone wheel, meanwhile, when the vibration screening mechanism is machined, the thickness of a corresponding fan-shaped screening plate can be reduced, and powder can fall conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of traditional Chinese medicine pulverization, and in particular to a traditional Chinese medicine grinding device. Background Art

[0002] Traditional Chinese medicine pulverization is the process of grinding large pieces of solid traditional Chinese medicine into particles or powders of appropriate fineness by mechanical force or other methods. Traditional Chinese medicine pulverization has the following advantages:

[0003] First, the surface area of ​​the crushed Chinese medicine increases, which is conducive to promoting the dissolution and absorption of the drug and improving the bioavailability of the drug;

[0004] Second, the crushed Chinese medicine is easier to prepare and take, which improves the convenience of medication for patients;

[0005] Third, crushing helps the active ingredients in the medicinal materials dissolve or leach out faster, thus fully exerting their efficacy;

[0006] Fourthly, the crushed Chinese medicine can be prepared into various dosage forms such as suspension, powder, tablets, pills, capsules, etc. to meet the medication needs of different patients.

[0007] Among them, Chinese medicine powders have achieved rapid development under the support of policies due to their significant efficacy. On the one hand, with the acceleration of the pace of life and the change of lifestyle, the number of people with chronic diseases and sub-health continues to expand. Chinese medicine powders have unique advantages in regulating body functions and improving the symptoms of chronic diseases. For example, Shenling Baizhu powder used to regulate spleen and stomach weakness and Luobu Ma Ye powder used to treat hypertension can achieve the effect of treating both the symptoms and the root cause through long-term use, meeting the needs of this group of people. On the other hand, people's attention to health is constantly increasing, and they are more and more inclined to adopt natural and green health-preserving methods. Chinese medicine powders use Chinese medicinal materials as raw materials, have the characteristics of small side effects and high safety, and are suitable for daily health care. The development of modern science and technology has provided new technical means for the production of Chinese medicine powders, such as ultrafine grinding technology, spray drying technology, freeze drying technology, etc. These technologies can improve the grinding fineness, stability and bioavailability of drugs, and improve the quality and efficacy of powders.

[0008] It is well known to those skilled in the art that the crushing of medicine is a key step in preparing powders. In order to obtain more standardized powders, those skilled in the art have made a series of improvements to existing medicine grinding equipment. For example, the invention patent CN111318324B discloses a Chinese medicine crusher based on hexagonal wheels, wherein the crusher body is connected to a hexagonal roller embedded in a track and running along the track via a support column; the crusher has the characteristics of small size, light weight, simple operation and convenient use, but the above patent also has the following defects:

[0009] First, during the grinding process, the medicinal material crushing block will hammer the inner wall of the crushing tube back and forth to crush the medicinal material. However, the medicinal material powder outlet hole of the above patent is directly opened on the crushing tube. During the screening process, the crushing tube wall with the medicinal material powder hole opened needs to be thinner so that the powder can pass smoothly. However, the too thin inner wall will be further thinned due to the hammering of the medicinal material crushing block, which will eventually damage the inner wall of the crushing tube.

[0010] Secondly, the grinding cylinder and feed hopper of the above patent are directly mounted on the base of the grinder. The grinding cylinder and the feed hopper are only connected to the first drive motor through a horizontal eccentric crank drive mechanism. The grinding cylinder and the feed hopper have no external limit parts for limiting their positions. Therefore, the grinding cylinder and the feed hopper will deviate to the left and right during the reciprocating horizontal movement, and eventually cause the entire grinding device to tip over.

[0011] In view of the above problems, the present invention provides a Chinese medicinal material grinding device to solve them. Summary of the invention

[0012] Based on this, it is necessary to provide a Chinese medicinal material grinding device to address the existing technical problems.

[0013] In order to solve the problems of the prior art, the technical scheme adopted by the present invention is: a Chinese medicinal material grinding device, including a grinding table, a rolling grinding mechanism, a vibrating screening mechanism and a powder lifting mechanism, a vertically upward columnar table is formed at the center of the grinding table, a vertically upward outer edge table is formed at the outer edge of the grinding table, an annular grinding groove is opened between the columnar table and the outer edge table, a vertical main rotating shaft is rotatably arranged on the columnar table, the rolling grinding mechanism includes a stone wheel running in the annular grinding groove, the stone wheel is connected to the main rotating shaft, the vibrating screening mechanism includes a fan-shaped frame, a fan-shaped screen plate, a fan-shaped blanking plate, a vibration generating part and a buffer, the fan-shaped frame is connected to the main rotating shaft, the fan-shaped screen plate is arranged above the annular grinding groove, the fan-shaped screen plate is connected to the fan-shaped frame through the buffer, and the fan-shaped screen A flat annular cavity is formed between the plate and the fan-shaped frame, and an air port and a discharge port are respectively provided at both ends of the annular cavity, and a blowing part is provided on the air port. A vibration generating part is provided on the fan-shaped screen plate, and the fan-shaped blanking plate is connected to the fan-shaped frame in an inclined state, and the fan-shaped blanking plate is located below the fan-shaped screen plate, and a circle of baffle ring is provided on the outer edge platform, and a discharge port is provided on the baffle ring. The powder lifting mechanism includes a suction pipe, a centrifugal fan and a buffer tank. The suction pipe is provided between the stone wheel and the fan-shaped frame, and the suction pipe is connected to the main rotating shaft, the air port faces the suction pipe, and the discharge port faces the stone wheel. The buffer tank is mounted above the fan-shaped frame, and a discharge pipe for discharging powder into the annular cavity is provided on the buffer tank. The centrifugal fan is provided above the suction pipe, and the centrifugal fan connects the suction pipe and the buffer tank.

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

[0015] Furthermore, horizontal strip rods are provided at both ends of the fan-shaped top plate, two No. 1 convex rings spaced apart from each other are formed on the outer wall of the outer edge arc plate, and two No. 2 convex rings spaced apart from each other are formed on the outer wall of the inner edge arc plate. The buffer comprises two groups of elastic connectors respectively arranged on the two strip rods, each group of elastic connectors comprises two pairs of springs, each pair of springs is respectively arranged at both ends of the corresponding strip rod, and each pair of springs is respectively located above and below the strip rod, each spring close to the outer edge arc plate is respectively fixedly connected to the corresponding No. 1 convex ring and the end of the strip rod, each spring close to the inner edge arc plate is respectively fixedly connected to the corresponding No. 2 convex ring and the end of the strip rod, and the two ends of the fan-shaped screen plate are respectively fixedly connected to the two strip rods.

[0016] Furthermore, the vibration generating component includes a No. 1 ring, a No. 2 ring and two pairs of rollers. The No. 1 ring is coaxially fixed on the top of the cylindrical platform, and the No. 2 ring is coaxially fixed on the top of the outer edge platform. The top of the No. 1 ring is formed with a number of No. 1 protrusions equidistantly distributed along the circumferential direction of the No. 1 ring, and the top of the No. 2 ring is formed with a number of No. 2 protrusions equidistantly distributed along the circumferential direction of the No. 2 ring. The two pairs of rollers are respectively arranged on two strip rods, each pair of rollers is rotatably connected to the two ends of the corresponding strip rod, and each pair of rollers is respectively mounted on the No. 1 ring and the No. 2 ring.

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

[0018] Furthermore, two strip support rods are respectively close to the air port and the discharge port, and the blowing part includes a strip ventilation shell and a connecting nozzle. The strip ventilation shell is horizontally fixedly connected to the strip support rod close to the air port. A horizontal ventilation groove is opened in the strip ventilation shell. A plurality of strip air ports connected to the ventilation grooves are opened on the side of the strip ventilation shell facing the air port. The connecting nozzle is fixed on one end of the strip ventilation shell facing the outer edge arc plate, and the connecting nozzle is connected to the ventilation grooves.

[0019] Furthermore, the suction pipe includes a straight pipe, a bent pipe and a suction head. The upper end of the straight pipe is provided with a horizontal connecting rod, which connects the straight pipe to the main rotating shaft. The bent pipe is formed at the lower end of the straight pipe, and the suction head is fixed to the lower end of the bent pipe. Two symmetrical transverse rods are fixed to the lower end of the straight pipe, and an arc-shaped slider is formed on the end of each transverse rod. The two arc-shaped sliders are respectively mounted on the No. 1 support ring and the No. 2 support ring.

[0020] Furthermore, the centrifugal fan includes a volute, a wind wheel 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 wind wheel rotates in the volute, and the motor is vertically mounted on the volute, and the output end of the motor is coaxially fixedly connected to the wind wheel.

[0021] Furthermore, a support frame fixedly connected to the outer edge arc plate and the inner edge arc plate is provided above the fan-shaped top plate, the buffer tank is fixed on the support frame, the lower end of the buffer tank gradually tapers into a cone, the discharge pipe is vertically 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] Compared with the prior art, the present invention has the following beneficial effects:

[0023] Firstly, the vibration screening mechanism and the grinding table of the device are independently arranged, so that when processing the grinding table, the bottom wall of the grinding table can be thickened to prevent the bottom wall of the grinding table from being damaged due to long-term grinding of the stone wheel. At the same time, when processing the vibration screening mechanism, the corresponding fan-shaped screen plate can be reduced in thickness to facilitate the falling of the powder.

[0024] Secondly, the device can perform cyclic grinding on the Chinese medicine raw materials in the annular grinding groove, and all the Chinese medicine raw materials in the annular grinding groove can be ground into small particle powder through cyclic grinding without secondary processing, thereby improving the grinding efficiency;

[0025] Thirdly, a discharge port is provided on the baffle ring of the device. During the rotation of the fan-shaped frame, if the fan-shaped blanking plate does not correspond to the discharge port, the powder on the fan-shaped blanking plate will be blocked by the baffle ring. Only when the fan-shaped blanking plate rotates to correspond to the discharge port, the powder on the fan-shaped blanking plate can be discharged through the discharge port, thereby realizing centralized collection of powder and improving the portability of powder collection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 yes Figure 1 A1 is a partial enlarged schematic diagram;

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

[0029] Figure 4 yes Figure 3 A2 is a partial enlarged schematic diagram;

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

[0031] Figure 6 It is a three-dimensional structural schematic diagram of the vibration screening mechanism;

[0032] Figure 7 yes Figure 6 A3 is a partial enlarged schematic diagram;

[0033] Figure 8 yes Figure 6 A4 is a partial enlarged schematic diagram;

[0034] Fig. 9 It is a top view of the vibrating screening mechanism;

[0035] Fig.10 yes Fig. 9 Section view along line AA;

[0036] Fig.11 It is a three-dimensional structural schematic diagram of the fan-shaped frame;

[0037] Fig.12 It is a schematic diagram of the three-dimensional structure of the fan-shaped screen plate;

[0038] Fig.13 It is a three-dimensional structural diagram of the powder lifting mechanism;

[0039] Fig.14 It is a three-dimensional structural exploded diagram of a centrifugal fan;

[0040] Fig.15 It is a schematic diagram of the three-dimensional structure of the buffer tank;

[0041] Fig.16 It is a three-dimensional structural schematic diagram of the blowing member;

[0042] Fig.17 is a top view of the blowing member;

[0043] Fig.18 yes Fig.17 Section view along line BB.

[0044] The numbers in the figure are: 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 screen plate; 9, fan-shaped blanking plate; 10, annular material chamber; 11, air port; 12, discharge port; 13, blocking ring; 14, discharge 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 convex ring; 25, spring; 26, circular ring No. 1; 27, circular ring No. 2; 28, roller; 29, convex block No. 1; 30, convex block No. 2; 31, supporting ring No. 1; 32, supporting ring No. 2; 33, strip ventilation shell; 34, connecting nozzle; 35, ventilation slot; 36, strip air outlet; 37, straight pipe; 38, bent pipe; 39, suction head; 40, connecting rod; 41, transverse rod; 42, arc-shaped slider; 43, volute; 44, wind wheel; 45, motor; 46, air inlet; 47, air outlet; 48, supporting frame. DETAILED DESCRIPTION

[0045] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] refer to Figures 1 to 18 A Chinese medicinal material grinding device shown in the figure comprises a grinding table 1, a rolling grinding mechanism, a vibrating screening mechanism and a powder lifting mechanism. A vertically upward columnar table 2 is formed at the center of the grinding table 1, and a vertically upward outer edge table 3 is formed at the outer edge of the grinding table 1. An annular grinding groove 4 is opened between the columnar table 2 and the outer edge table 3. A vertical main rotating shaft 5 is rotatably provided on the columnar table 2. The rolling grinding mechanism comprises a stone wheel 6 running in the annular grinding groove 4, and the stone wheel 6 is connected to the main rotating shaft 5. The vibrating screening mechanism comprises a fan-shaped frame 7, a fan-shaped screen plate 8, a fan-shaped blanking plate 9, a vibration generating member and a buffer member. The fan-shaped frame 7 (such as Fig.11 ) is connected to the main rotating shaft 5, and the fan-shaped screen plate 8 (as shown Fig.12 The fan-shaped screen plate 8 is connected to the fan-shaped frame 7 through a buffer, and a flat annular material chamber 10 is formed between the fan-shaped screen plate 8 and the fan-shaped frame 7. The two ends of the annular material chamber 10 are respectively provided with an air port 11 and a discharge port 12 (combined with Figure 3 , Figure 5 and Fig.10), a blowing member is provided on the air inlet 11, a vibration generating member is provided on the fan-shaped screen plate 8, a fan-shaped blanking plate 9 is connected to the fan-shaped frame 7 in an inclined state, and the fan-shaped blanking plate 9 is located below the fan-shaped screen plate 8, a circle of blocking ring 13 is provided on the outer edge platform 3, and a discharge port 14 is provided on the blocking ring 13, and the powder lifting mechanism includes a suction pipe 15, a centrifugal fan and a buffer tank 16, the suction pipe 15 is provided 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, and the buffer tank 16 (such as Fig.15 A discharge pipe 17 for discharging powder into the annular material chamber 10 is provided on the annular material chamber 10, and a centrifugal fan is arranged above the suction pipe 15, and the centrifugal fan connects the suction pipe 15 and the buffer tank 16.

[0047] The Chinese medicine raw materials are poured into the annular grinding groove 4, and then the main rotating shaft 5 starts to rotate slowly. The main rotating shaft 5 of the device rotates counterclockwise by default (such as Figure 1 As shown in the figure, 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 Chinese medicine raw materials in the annular grinding groove 4 are ground into powder by the rolling stone wheel 6. After that, the centrifugal fan is started, and the centrifugal fan will generate suction in the suction pipe 15, so that the powder in the annular grinding groove 4 will go upward into the suction pipe 15. The powder entering the suction pipe 15 will fall into the buffer tank 16 after passing through the centrifugal fan. In this process, the kinetic energy of the powder is reduced by the buffer tank 16. , so that the powder falls slowly, and finally the powder will fall into the annular material chamber 10 through the discharge pipe 17. When the powder falls into the annular material chamber 10, the vibration generating member will make the fan-shaped screen plate 8 vibrate. In this process, the powder is screened by the vibrating fan-shaped screen plate 8, and the small particles of powder will pass through the fan-shaped screen plate 8 and fall into the fan-shaped drop plate 9, while the large particles of powder will be blocked by the fan-shaped screen plate 8. The small particles of powder falling into the fan-shaped drop plate 9 will be blocked by the blocking 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 blanking plate 9 corresponds to the discharge port 14, the small-particle powder will be discharged through the discharge port 14. During the vibration of the fan-shaped screen plate 8, the blowing member will blow gas into the annular cavity 10. At this time, the flowing gas drives the powder in the annular cavity 10 to be discharged to the discharge port 12. Finally, the large-particle powder blocked by the fan-shaped screen plate 8 will fall into the annular grinding groove 4 again through the discharge port 12. After that, the stone wheel 6 will perform secondary grinding on the powder discharged from the discharge port 12. Grind, wherein, when pouring the Chinese medicinal materials into the annular grinding groove 4, pour the Chinese medicinal materials into the rear of the suction pipe 15, so that when the main rotating shaft 5 rotates, the suction pipe 15 will not suck the Chinese medicinal materials into the buffer tank 16, so as to ensure that the suction pipe 15 will only suck the ground powder into the buffer tank 16. In summary, with the continuous rotation of the main rotating shaft 5, the Chinese medicinal materials in the annular grinding groove 4 will be cyclically ground by the stone wheel 6 until all the Chinese medicinal materials are turned into small particles of powder and discharged from the discharge port 14.

[0048] In order to show the specific structure of the fan-shaped frame 7, the following features are set:

[0049] The fan-shaped frame 7 includes a fan-shaped top plate 18, an outer edge arc plate 19 and an inner edge arc plate 20. The fan-shaped top plate 18 is horizontal, and the outer edge arc plate 19 and the inner edge arc plate 20 are both vertical (such as Fig.11 As shown in the figure, the outer edge arc plate 19 and the inner edge arc plate 20 are respectively fixedly connected to the outer edge and the inner edge of the fan-shaped top plate 18, the fan-shaped screen plate 8 is arranged directly below the fan-shaped top plate 18, and the annular material chamber 10 is formed between the fan-shaped screen plate 8, the fan-shaped top plate 18, the outer edge arc plate 19 and the inner edge arc plate 20. Two horizontal strip support rods 21 are fixedly provided on the main rotating shaft 5, and the angle between the two strip support rods 21 is 90°. The two ends of the fan-shaped top plate 18 are respectively fixedly connected to the two strip support rods 21.

[0050] When the main rotating shaft 5 rotates, the two strip support rods 21 will rotate synchronously, so that the fan-shaped top plate 18 fixedly connected to the two strip support rods 21 will be driven to revolve around the main rotating shaft 5. When the fan-shaped top plate 18 revolves, the fan-shaped top plate 18 will synchronously drive the outer edge arc plate 19 and the inner edge arc plate 20 to rotate together, and finally realize the overall rotation of the fan-shaped frame 7. During the revolution of the fan-shaped frame 7, the powder falling into the annular material chamber 10 will be sieved by the vibrating fan-shaped screen plate 8, and the large particles of powder that have not been sieved out will be discharged into the annular grinding groove 4 again through the discharge port 12, so as to be ground again by the stone wheel 6, and finally realize the circular grinding of the Chinese medicine raw materials.

[0051] In order to show the specific structure of the buffer, the following features are set:

[0052] Both ends of the fan-shaped top plate 18 are provided with horizontal strip rods 22, the outer wall of the outer edge arc plate 19 is formed with two No. 1 convex rings 23 spaced apart from each other, and the outer wall of the inner edge arc plate 20 is formed with two No. 2 convex rings 24 spaced apart from each other. The buffer comprises two groups of elastic connectors respectively arranged on the two strip rods 22, and each group of elastic connectors comprises two pairs of springs 25 (such as Figure 7 and Figure 8 As shown), each pair of springs 25 are respectively arranged at the two ends of the corresponding strip rod 22, and each pair of springs 25 are respectively located above and below the strip rod 22, each spring 25 close to the outer edge arc plate 19 is respectively fixedly connected to the corresponding No. 1 convex ring 23 and the end of the strip rod 22, each spring 25 close to the inner edge arc plate 20 is respectively fixedly connected to the corresponding No. 2 convex ring 24 and the end of the strip rod 22, and the two ends of the fan-shaped screen plate 8 are respectively fixedly connected to the two strip rods 22.

[0053] Before installing the fan-shaped screen plate 8, first install the two strip rods 22 at the two ends of the fan-shaped top plate 18 respectively. During this process, each strip rod 22 is placed horizontally between the outer edge arc plate 19 and the inner edge arc plate 20. One end of each strip rod 22 is connected to the two No. 1 convex rings 23 through two springs 25, and the other end of each strip rod 22 is connected to the two No. 2 convex rings 24 through two springs 25. Thereafter, the two ends of the fan-shaped screen plate 8 are fixedly connected to the two strip rods 22 respectively. 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, thereby finally realizing the vibration screening function of the fan-shaped screen plate 8.

[0054] In order to show the specific structure of the vibration generating part, the following features are set:

[0055] The vibration generating member includes a first ring 26, a second ring 27 and two pairs of rollers 28. The first ring 26 (such as Figure 4 ) is coaxially fixed on the top of the columnar platform 2, and the second ring 27 (as shown Figure 2 The top of the No. 1 circular ring 26 is formed with a plurality of No. 1 protrusions 29 equidistantly distributed along the circumferential direction of the No. 1 circular ring 26, and the top of the No. 2 circular ring 27 is formed with a plurality of No. 2 protrusions 30 equidistantly distributed along the circumferential direction of the No. 2 circular ring 27. Two pairs of rollers 28 are respectively arranged on two strip rods 22, and 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 No. 1 circular ring 26 and the No. 2 circular ring 27.

[0056] When the fan-shaped frame 7 revolves around the main rotating shaft 5, the fan-shaped 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 No. 1 ring 26 and the No. 2 ring 27 respectively. Then, through the action of the No. 1 protrusion 29 and the No. 2 protrusion 30, the rollers 28 can float up and down while rolling, so that the strip rod 22 can vibrate during the rotation process. Finally, the fan-shaped screen plate 8 connected to the two strip rods 22 will screen the powder falling into the annular material chamber 10 through vibration.

[0057] In order to improve the stability of the fan-shaped frame 7 during revolution, the following features are provided:

[0058] A No. 1 support ring 31 is coaxially formed on the top of the retaining ring 13, and a No. 2 support ring 32 is coaxially formed on the top of the columnar platform 2. The No. 1 convex ring 23 located below is downwardly overlaid on the top of the No. 1 support ring 31, and the No. 2 convex ring 24 located below is downwardly overlaid on the top of the No. 2 support ring 32.

[0059] When the main rotating shaft 5 drives the fan-shaped frame 7 to rotate, the No. 1 convex ring 23 located below will slide on the No. 1 support ring 31, and the No. 2 convex ring 24 located below will slide on the No. 2 support ring 32, thereby improving the stability of the fan-shaped frame 7 during revolution through the supporting effect of the No. 1 support ring 31 and the No. 2 support ring 32.

[0060] In order to show the specific structure of the blowing piece, the following features are set:

[0061] The two strip-shaped support rods 21 are respectively close to the air port 11 and the discharge port 12, and the blowing member includes a strip-shaped ventilation shell 33 and a connecting nozzle 34 (such as Fig.16 As shown in the figure, the strip ventilation shell 33 is horizontally fixedly connected to the strip support rod 21 close to the air outlet 11, a horizontal ventilation slot 35 is opened in the strip ventilation shell 33, a plurality of strip air outlets 36 connected with the ventilation slot 35 are opened on the side of the strip ventilation shell 33 facing the air outlet 11, and a connecting nozzle 34 is fixed on one end of the strip ventilation shell 33 facing the outer edge arc plate 19, and the connecting nozzle 34 is connected with the ventilation slot 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 by dynamic air supply. When the gas is injected into the strip ventilation shell 33 through the connecting nozzle 34, the gas will enter the ventilation groove 35. Thereafter, the gas will be discharged to the air port 11 through a number of strip air ports 36. Finally, the gas that enters the annular material chamber 10 through the air port 11 will blow the powder on the fan-shaped screen plate 8 to the discharge port 12.

[0063] In order to show how the suction tube 15 is connected to the main rotating shaft 5, the following features are set:

[0064] The suction pipe 15 includes a straight pipe 37, a curved pipe 38 and a suction head 39. The upper end of the straight pipe 37 is provided with a horizontal connecting rod 40 (such as Figure 1 and Fig.13 As shown in the figure, the connecting rod 40 connects the straight tube 37 with 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 to the lower end of the bent tube 38, and two symmetrical transverse rods 41 are fixed to the lower end of the straight tube 37, and an arc-shaped slider 42 is formed on the end of each transverse rod 41, and the two arc-shaped sliders 42 are respectively mounted on the No. 1 support ring 31 and the No. 2 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, so as to realize 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 curved pipe 38 through the suction head 39, and then the powder will pass through the straight pipe 37 and the centrifugal fan in turn and fall into the buffer tank 16.

[0066] In order to show the specific structure of the centrifugal fan, the following features are set:

[0067] The centrifugal fan includes a volute 43, a wind wheel 44 and a motor 45. An air inlet 46 is provided on one side of the volute 43. 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 wind wheel 44 (such as Fig.14 As shown in the figure, the motor 45 rotates in the volute 43, the motor 45 is vertically mounted on the volute 43, and the output end of the motor 45 is coaxially fixedly connected to the wind wheel 44.

[0068] When the motor 45 is started, the motor 45 will drive the wind wheel 44 to rotate at a high speed, so that a large amount of suction will be generated 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, and then the powder will enter the volute 43. The powder entering the volute 43 will be thrown to the exhaust port 47 by centrifugal force, and finally the powder will fall into the buffer tank 16 through the exhaust port 47.

[0069] In order to show how the buffer tank 16 is mounted above the fan-shaped frame 7, the following features are set:

[0070] A support frame 48 is provided above the fan-shaped top plate 18 and is fixedly connected to the outer edge arc plate 19 and the inner edge 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. The discharge pipe 17 is vertically 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, the powder will flow downward along the buffer tank 16 and into the annular material chamber 10 along the discharge pipe 17. When the powder falls into the annular material chamber 10, as the fan-shaped screen plate 8 vibrates, the fan-shaped screen plate 8 will screen the powder, so that small particles of powder will directly pass through the fan-shaped screen plate 8 and fall downward onto the fan-shaped blanking plate 9, while large particles of powder will be discharged back into the annular grinding groove 4 from the discharge port 12 along the annular material chamber 10 through the blowing of the blowing piece.

[0072] Working principle:

[0073] The Chinese medicine raw materials are poured into the annular grinding groove 4, and then the main rotating shaft 5 starts to rotate slowly. The main rotating shaft 5 of the device rotates counterclockwise by default (such as Figure 1As shown in the figure, 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 Chinese medicine raw materials in the annular grinding groove 4 are ground into powder by the rolling stone wheel 6. After that, the centrifugal fan is started, and the centrifugal fan will generate suction in the suction pipe 15, so that the powder in the annular grinding groove 4 will go upward into the suction pipe 15. The powder entering the suction pipe 15 will fall into the buffer tank 16 after passing through the centrifugal fan. In this process, the kinetic energy of the powder is reduced by the buffer tank 16. , so that the powder falls slowly, and finally the powder will fall into the annular material chamber 10 through the discharge pipe 17. When the powder falls into the annular material chamber 10, the vibration generating member will make the fan-shaped screen plate 8 vibrate. In this process, the powder is screened by the vibrating fan-shaped screen plate 8, and the small particles of powder will pass through the fan-shaped screen plate 8 and fall into the fan-shaped drop plate 9, while the large particles of powder will be blocked by the fan-shaped screen plate 8. The small particles of powder falling into the fan-shaped drop plate 9 will be blocked by the blocking 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 blanking plate 9 corresponds to the discharge port 14, the small-particle powder will be discharged through the discharge port 14. During the vibration of the fan-shaped screen plate 8, the blowing member will blow gas into the annular cavity 10. At this time, the flowing gas drives the powder in the annular cavity 10 to be discharged to the discharge port 12. Finally, the large-particle powder blocked by the fan-shaped screen plate 8 will fall into the annular grinding groove 4 again through the discharge port 12. After that, the stone wheel 6 will perform secondary grinding on the powder discharged from the discharge port 12. Grind, wherein, when pouring the Chinese medicinal materials into the annular grinding groove 4, pour the Chinese medicinal materials into the rear of the suction pipe 15, so that when the main rotating shaft 5 rotates, the suction pipe 15 will not suck the Chinese medicinal materials into the buffer tank 16, so as to ensure that the suction pipe 15 will only suck the ground powder into the buffer tank 16. In summary, with the continuous rotation of the main rotating shaft 5, the Chinese medicinal materials in the annular grinding groove 4 will be cyclically ground by the stone wheel 6 until all the Chinese medicinal materials are turned into small particles of powder and discharged from the discharge port 14.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A Chinese medicinal material grinding device, characterized in that: The invention comprises a grinding table (1), a rolling grinding mechanism, a vibrating screening mechanism and a powder lifting mechanism. A vertically upward columnar table (2) is formed at the center of the grinding table (1), a vertically upward outer edge table (3) is formed at the outer edge of the grinding table (1), an annular grinding groove (4) is provided between the columnar table (2) and the outer edge table (3), a vertical main rotating shaft (5) is rotatably provided on the columnar table (2), and the rolling grinding mechanism comprises a stone wheel (6) running in the annular grinding groove (4), and the stone wheel (6) The vibrating screening mechanism is connected to the main rotating shaft (5), and comprises a fan-shaped frame (7), a fan-shaped screen plate (8), a fan-shaped blanking plate (9), a vibration generating member and a buffer member. The fan-shaped frame (7) is connected to the main rotating shaft (5), the fan-shaped screen plate (8) is arranged above the annular grinding groove (4), the fan-shaped screen plate (8) is connected to the fan-shaped frame (7) through the buffer member, and a flat annular material cavity (10) is formed between the fan-shaped screen plate (8) and the fan-shaped frame (7), and air ports are respectively arranged at both ends of the annular material cavity (10). (11) and a discharge port (12), the air port (11) is provided with a blowing member, the vibration generating member is provided on the fan-shaped screen plate (8), the fan-shaped blanking plate (9) is connected to the fan-shaped frame (7) in an inclined state, and the fan-shaped blanking plate (9) is located below the fan-shaped screen plate (8), a circle of blocking ring (13) is provided on the outer edge platform (3), and a discharge port (14) is provided on the blocking ring (13), and the powder lifting mechanism includes a suction pipe (15), a centrifugal fan and a buffer tank (16), and the suction pipe (15) The invention is arranged 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), and the discharge port (12) faces the stone wheel (6). The buffer tank (16) is arranged above the fan-shaped frame (7), and the buffer tank (16) is provided with a discharge pipe (17) for discharging powder into the annular material cavity (10). The centrifugal fan is arranged above the suction pipe (15), and the centrifugal fan connects the suction pipe (15) and the buffer tank (16).

2. A Chinese medicinal material grinding device according to claim 1, characterized in that: The fan-shaped frame (7) comprises a fan-shaped top plate (18), an outer edge arc plate (19) and an inner edge arc plate (20), the fan-shaped top plate (18) is horizontal, the outer edge arc plate (19) and the inner edge arc plate (20) are both vertical, the outer edge arc plate (19) and the inner edge arc plate (20) are respectively connected to the outer edge and the inner edge of the fan-shaped top plate (18), the fan-shaped screen plate (8) is arranged directly below the fan-shaped top plate (18), the annular material chamber (10) is formed between the fan-shaped screen plate (8), the fan-shaped top plate (18), the outer edge arc plate (19) and the inner edge arc plate (20), two horizontal strip support rods (21) are fixedly arranged on the main rotating shaft (5), the angle between the two strip support rods (21) is 90 degrees, and the two ends of the fan-shaped top plate (18) are respectively connected to the two strip support rods (21).

3. A Chinese medicinal material 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 edge arc plate (19) is formed with two first convex rings (23) spaced apart from each other, and the outer wall of the inner edge arc plate (20) is formed with two second convex rings (24) spaced apart from each other, and the buffer member includes two groups of elastic connecting members respectively arranged on the two strip rods (22), each group of elastic connecting members includes two pairs of springs (25), and each pair of springs (25) is respectively arranged on the corresponding strip rods. The two ends of the fan-shaped screen plate (8) are respectively fixedly connected to the two strip rods (22), and each pair of springs (25) is respectively located above and below the strip rod (22), each spring (25) close to the outer edge arc plate (19) is respectively fixedly connected to the corresponding No. 1 convex ring (23) and the end of the strip rod (22), each spring (25) close to the inner edge arc plate (20) is respectively fixedly connected to the corresponding No. 2 convex ring (24) and the end of the strip rod (22), and the two ends of the fan-shaped screen plate (8) are respectively fixedly connected to the two strip rods (22).

4. A Chinese medicinal material grinding device according to claim 3, characterized in that: The vibration generating member comprises a first circular ring (26), a second circular ring (27) and two pairs of rollers (28). The first circular ring (26) is coaxially fixed on the top of the columnar platform (2), and the second circular ring (27) is coaxially fixed on the top of the outer edge platform (3). The top of the first circular ring (26) is formed with a plurality of first convex blocks (29) equidistantly distributed along the circumferential direction of the first circular ring (26), and the top of the second circular ring (27) is formed with a plurality of second convex blocks (30) equidistantly distributed along the circumferential direction of the second circular ring (27). The two pairs of rollers (28) are respectively arranged on two strip rods (22), and each pair of rollers (28) is respectively connected to two ends of the corresponding strip rod (22) for rotation, and each pair of rollers (28) is respectively mounted on the first circular ring (26) and the second circular ring (27).

5. The Chinese medicinal material grinding device according to claim 3, characterized in that: A No. 1 support ring (31) is coaxially formed on the top of the retaining ring (13), and a No. 2 support ring (32) is coaxially formed on the top of the columnar platform (2). The No. 1 convex ring (23) located below is laid downward on the top of the No. 1 support ring (31), and the No. 2 convex ring (24) located below is laid downward on the top of the No. 2 support ring (32).

6. A Chinese medicinal material grinding device according to claim 2, characterized in that: The two strip-shaped support rods (21) are respectively close to the air port (11) and the discharge port (12). The blowing member comprises a strip-shaped ventilation shell (33) and a connecting nozzle (34). The strip-shaped ventilation shell (33) is horizontally fixedly connected to the strip-shaped support rod (21) close to the air port (11). A horizontal ventilation slot (35) is provided in the strip-shaped ventilation shell (33). A plurality of strip-shaped air ports (36) connected to the ventilation slots (35) are provided on one side of the strip-shaped ventilation shell (33) facing the air port (11). 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 slots (35).

7. The Chinese medicinal material grinding device according to claim 5, characterized in that: The suction pipe (15) comprises a straight pipe (37), a curved pipe (38) and a suction head (39). A horizontal connecting rod (40) is provided at the upper end of the straight pipe (37). The connecting rod (40) connects the straight pipe (37) with the main rotating shaft (5). The curved pipe (38) is formed at the lower end of the straight pipe (37). The suction head (39) is fixed to the lower end of the curved pipe (38). Two symmetrical transverse rods (41) are fixed at the lower end of the straight pipe (37). An arc-shaped slider (42) is formed at the end of each transverse rod (41). The two arc-shaped sliders (42) are respectively mounted on the first support ring (31) and the second support ring (32).

8. A Chinese medicinal material grinding device according to claim 7, characterized in that: The centrifugal fan comprises a volute (43), a wind wheel (44) and a motor (45); an air inlet (46) is provided on one side of the volute (43); 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); the air outlet (47) is connected to the buffer tank (16); the wind wheel (44) rotates in the volute (43); the motor (45) is vertically mounted on the volute (43); and the output end of the motor (45) is coaxially fixedly connected to the wind wheel (44).

9. The Chinese medicinal material grinding device according to claim 2, characterized in that: A support frame (48) is provided above the fan-shaped top plate (18) and is fixedly connected to the outer edge arc plate (19) and the inner edge arc plate (20). The buffer tank (16) is fixed on the support frame (48). The lower end of the buffer tank (16) is gradually tapered into a cone. The discharge pipe (17) is vertically 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).

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