Chinese medicine grinding device

Abstract

The present application relates to the technical field of grinding devices, and in particular to a Chinese medicine grinding device, which includes a grinding barrel with a feed hopper and a discharge pipe, wherein a crushing paddle and a grinding shell are arranged in the grinding barrel; the height of the upper surface of the grinding shell gradually decreases from its center to its edge, and a plurality of grinding units are arranged between the outer wall of the grinding shell and the inner wall of the grinding barrel, and the grinding unit includes a grinding chamber and a storage chamber; a plurality of grinding teeth are arranged on the outer wall of the grinding shell and the inner wall of the grinding barrel, and a plurality of spacer rings are fixedly embedded in the grinding barrel, and a material drop opening is arranged on the spacer ring, and the storage chamber on the upper side is connected to the grinding chamber on the lower side through the material drop opening, and a plurality of scraper assemblies are arranged on the outer wall of the grinding shell, and the scraper assemblies abut against the upper surface of the spacer ring; and a driving unit for driving the crushing paddle and the grinding shell to rotate is also included. The present application can improve the grinding effect and efficiency of Chinese medicine.

Description

Technical Field

[0001] The present application relates to the technical field of grinding devices, and in particular to a grinding device for traditional Chinese medicine. Background Art

[0002] In order to increase the surface area of ​​the drug to promote drug dissolution, facilitate the preparation of various drug dosage forms, accelerate the dissolution of active ingredients in medicinal materials, facilitate preparation, administration and efficacy, and facilitate the drying and storage of fresh medicinal materials, some Chinese medicines need to be ground after picking. In order to improve the effect of grinding Chinese medicine, mechanical grinding is generally used.

[0003] Through searching, Chinese patent announcement number CN116921045B discloses a Chinese medicine grinder, which relates to the field of grinding technology, including a machine base, a feeding mechanism is arranged on the machine base, the feeding mechanism includes a shell, a feed hopper is arranged above one end of the shell, a feeding rod is arranged in the shell, a spiral blade is arranged on the feeding rod, a notch is arranged at the tail of the spiral blade, a plurality of cutting blades are arranged on the inner wall of the shell, and the plurality of cutting blades are distributed in a circle, a driving motor is arranged at one end of the shell, the output end of the driving motor is fixedly connected to one end of the feeding rod, a grinding mechanism is arranged at the end of the feeding mechanism, a screening mechanism is arranged at the lower end of the grinding mechanism, a reflux mechanism is arranged on one side of the screening mechanism, and the reflux mechanism is connected to the grinding mechanism. Compared with the prior art, the present invention has a simpler structure, can perform continuous Chinese medicine grinding, is easy to operate, can grind Chinese medicine into different sizes, and has stronger applicability.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: if the traditional Chinese medicine transported to the grinding gap cannot be quickly ground into a qualified particle size, the traditional Chinese medicine will not be able to be discharged into the discharge frame in time, resulting in the accumulation of the traditional Chinese medicine in the grinding gap. At this time, the traditional Chinese medicine with qualified particle size and the traditional Chinese medicine with unqualified particle size will be mixed together. The traditional Chinese medicine with unqualified particle size will affect the discharge of the traditional Chinese medicine with qualified particle size, aggravating the blockage of the traditional Chinese medicine and affecting the grinding effect and grinding efficiency of the traditional Chinese medicine. Therefore, improvement is needed. Summary of the invention

[0005] In order to improve the grinding effect and grinding efficiency of traditional Chinese medicine, the present application provides a traditional Chinese medicine grinding device.

[0006] The Chinese medicine grinding device provided by the present application adopts the following technical scheme: the Chinese medicine grinding device comprises a grinding barrel having a feed hopper and a discharge pipe, wherein a crushing paddle and a grinding shell are arranged in sequence from top to bottom in the grinding barrel, the crushing paddle, the grinding shell and the grinding barrel are arranged coaxially, the feed hopper is located above the crushing paddle, and the discharge pipe is located below the grinding shell; The height of the upper surface of the grinding shell gradually decreases from the center to the edge thereof. A plurality of grinding units arranged in sequence along the vertical direction are provided between the outer wall of the grinding shell and the inner wall of the grinding barrel. The grinding unit comprises a grinding chamber and a material storage chamber which are arranged in an annular shape and connected up and down. The ring width of the grinding chamber gradually decreases from top to bottom, and the ring width of the material storage chamber remains unchanged from top to bottom. A plurality of grinding teeth located in the grinding cavity are arranged on the outer wall of the grinding shell and the inner wall of the grinding barrel, a plurality of spacer rings arranged in the corresponding material storage cavities are fixedly embedded in the grinding barrel, a material drop opening is arranged on the spacer ring, the material storage cavity located on the upper side is connected to the grinding cavity located on the lower side through the material drop opening, a plurality of scraper assemblies rotatably embedded in the corresponding material storage cavities are arranged on the outer wall of the grinding shell, and the scraper assemblies abut against the upper surface of the spacer ring; Also included is a drive unit for driving the crushing paddle and the grinding shell to rotate.

[0007] Optionally, an accommodating cavity is provided on the inner wall of the grinding barrel, a rotating shaft arranged vertically is rotatably connected in the accommodating cavity, and a plurality of crushing leaves arranged in corresponding grinding cavities are installed on the rotating shaft; The scraper assembly can rotate on a horizontal plane and is rotatably connected to the outer wall of the grinding shell. The scraper assembly is also connected to the outer wall of the grinding shell through a torsion spring. When the torsion spring is in a natural state, the scraper assembly will contact the inner wall of the grinding barrel. A guide plate for the scraper assembly to rotate against is provided at the accommodating chamber, and the scraper assembly will rotate away from the motion track of the crushing blade after it hits the guide plate; The driving unit can also drive the rotating shaft to rotate.

[0008] Optionally, the scraper assembly includes an outer shell and an inner plate, the inner plate is slidably embedded in the outer shell along the vertical direction, and the inner plate is connected to the outer shell through a spring, and when the spring is in a natural state, the lower surface of the inner plate will abut against the upper surface of the spacer ring; A material guide seat is provided on the upper surface of the spacer ring, and an ascending surface and a descending surface are provided on the material guide seat; The inner plate will pass through the ascending surface, descending surface, accommodating cavity and material discharge port in sequence as it rotates with the grinding shell. The Chinese medicine pushed away from the ascending surface by the inner plate will make parabolic motion and move to the crushing leaves.

[0009] Optionally, a sieve plate is fixedly embedded in the grinding barrel, and the sieve plate is located between the grinding shell and the discharge pipe, and the height of the upper surface of the sieve plate gradually decreases from its edge to its center.

[0010] Optionally, the driving unit includes a rotating rod and a motor, the rotating rod is coaxially connected to the grinding shell and the crushing paddle, the rotating rod is rotatably penetrated through the center of the sieve plate and is rotatably connected to the grinding barrel, and the rotating rod is connected to the rotating shaft and the motor output shaft through a belt drive, and the motor is installed on the grinding barrel.

[0011] Optionally, a return barrel is connected to the center of the upper surface of the sieve plate through a connecting rod, the return barrel is vertically arranged, and a lower end opening of the return barrel is arranged with a gap between it and the upper surface of the sieve plate; The rotating rod is provided with a spiral blade which is rotatably embedded in the return barrel. The center of the upper surface of the grinding shell is provided with a return port which is communicated with the upper end opening of the return barrel.

[0012] Optionally, a first air cavity is provided inside the rotating rod, and a second air cavity is provided between the inner and outer walls of the grinding shell; A hot air blower is provided on the grinding barrel, and an air duct is connected to the hot air blower. The air duct rotates around the axis of the rotating rod and is connected to the first air cavity. The first air cavity is connected to the second air cavity. A plurality of first jet holes are provided on the outer wall of the grinding shell. The first jet holes are connected to the second air cavity and face the upper surface of the spacer ring.

[0013] Optionally, the lower end of the grinding shell is bent toward the center of the grinding shell and is provided with a plurality of second air injection holes, and the second air injection holes are connected to the second air cavity and face the upper surface of the sieve plate.

[0014] Optionally, a plurality of baffle plates are provided on the upper surface of the sieve plate, and every two adjacent baffle plates are spaced apart. A guide surface is provided on one side of the baffle plate away from the center of the sieve plate, which is arranged in an arc shape and is used to guide the traditional Chinese medicine on the upper surface of the sieve plate to slide downward.

[0015] In summary, this application includes the following beneficial technical effects: 1. The setting of the spacer ring allows a certain amount of Chinese medicine to be temporarily stored in each storage chamber, and the grinding chamber can prevent the Chinese medicine from piling up at the same height, so that the Chinese medicine can be dispersed as much as possible, reducing the probability of Chinese medicine accumulation and blockage, and the Chinese medicine with qualified particle size and the Chinese medicine with unqualified particle size can be dispersed as much as possible, thereby improving the grinding effect and grinding efficiency of the Chinese medicine; 2. When the crushed Chinese medicine falls into the grinding chamber, the motor can drive the rotating shaft to rotate through the rotating rod, and the rotating shaft will drive the crushing leaves to rotate and crush the Chinese medicine in the grinding chamber. The inner plate can push the Chinese medicine in the storage chamber up to the crushing leaves, so that the Chinese medicine is crushed again, thereby improving the crushing effect and subsequent grinding effect of the Chinese medicine; 3. Multiple grinding units are arranged sequentially from top to bottom, so that the Chinese medicine can be ground and crushed multiple times in sequence, thereby further improving the grinding effect and grinding efficiency of the Chinese medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 It is a schematic cross-sectional structure diagram of the overall embodiment of the present application; Figure 3It is a schematic cross-sectional view of the grinding unit of the grinding barrel and the grinding shell of the embodiment of the present application; Figure 4 It is a schematic cross-sectional view of the grinding barrel and the grinding shell of the embodiment of the present application; Figure 5 is a schematic structural diagram of a grinding shell and a grinding unit according to an embodiment of the present application; Figure 6 It is a schematic structural diagram of a scraper assembly, a material spacer ring and a material guide seat according to an embodiment of the present application; Figure 7 It is a schematic cross-sectional view of the grinding barrel, grinding shell and sieve plate of the embodiment of the present application; Figure 8 It is a schematic diagram of the structure of the grinding barrel and the grinding shell of the embodiment of the present application; Fig. 9 It is a schematic diagram of the structure of the sieve plate of the embodiment of the present application.

[0017] 1. Grinding barrel; 11. Feed hopper; 12. Discharge pipe; 13. Accommodating chamber; 14. Rotating shaft; 15. Crushing blade; 2. Crushing paddle; 3. Grinding shell; 31. Return port; 32. Second air chamber; 33. First jet hole; 34. Second jet hole; 4. Sieve plate; 41. Baffle plate; 42. Connecting rod; 43. Return barrel; 5. Driving unit; 51. Motor; 52. Rotating rod; 53. First air chamber; 6. Grinding unit; 61. Grinding chamber; 62. Storage chamber; 63. Grinding teeth; 64. Spacer ring; 641. Dropping port; 65. Scraper assembly; 651. Outer shell; 652. Inner plate; 653. Spring; 654. Torsion spring; 66. Guide plate; 67. Guide seat; 671. Rising surface; 672. Descending surface; 7. Hot air blower; 71. Air duct. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-9 This application is described in further detail.

[0019] The present application discloses a Chinese medicine grinding device. Figure 1 and Figure 2 As shown, the Chinese medicine grinding device includes a vertically arranged grinding barrel 1, the top of the grinding barrel 1 is connected to a feed hopper 11, and the bottom of the grinding barrel 1 is connected to a discharge pipe 12.

[0020] A crushing paddle 2, a grinding shell 3 and a sieve plate 4 are arranged in sequence from top to bottom in the grinding barrel 1. The crushing paddle 2, the grinding shell 3, the sieve plate 4 and the grinding barrel 1 are arranged coaxially. The feed hopper 11 is located above the crushing paddle 2, and the discharge pipe 12 is located below the sieve plate 4.

[0021] The driving unit 5 is also included, and the driving unit 5 includes a rotating rod 52 and a motor 51. The rotating rod 52 is coaxially connected to the grinding shell 3 and the crushing paddle 2. The rotating rod 52 is rotatably arranged at the center of the sieve plate 4 and is rotatably connected to the grinding barrel 1. The rotating rod 52 is connected to the output shaft of the motor 51 through a belt transmission. The motor 51 is installed at the bottom of the grinding barrel 1. When the Chinese medicine enters the grinding barrel 1 through the feed hopper 11, the motor 51 will drive the rotating rod 52 to rotate through the belt transmission, and the rotating rod 52 will drive the crushing paddle 2 to rotate, so that the crushing paddle 2 crushes the Chinese medicine entering the grinding barrel 1.

[0022] The height of the upper surface of the grinding shell 3 gradually decreases from its center to its edge, and a plurality of grinding units 6 arranged in sequence along the vertical direction are provided between the outer wall of the grinding shell 3 and the inner wall of the grinding barrel 1. Part of the crushed Chinese medicine will directly fall to the grinding unit 6, and another part of the Chinese medicine will fall to the upper surface of the grinding shell 3. This part of the Chinese medicine will slide down along the upper surface of the grinding shell 3 to the grinding unit 6, thereby preventing the Chinese medicine from accumulating on the upper surface of the grinding shell 3.

[0023] like Figure 2 and Figure 3 As shown, the grinding unit 6 includes a grinding chamber 61 and a material storage chamber 62 which are arranged in an annular shape and connected up and down, and a plurality of grinding teeth 63 located in the grinding chamber 61 are installed on the outer wall of the grinding shell 3 and the inner wall of the grinding barrel 1. When the crushed Chinese medicine falls into the grinding chamber 61, the motor 51 drives the grinding shell 3 to rotate through the rotating rod 52, and the grinding teeth 63 on the grinding shell 3 cooperate with the grinding teeth 63 on the grinding barrel 1 to realize the crushing and grinding of the Chinese medicine again.

[0024] The ring width of the grinding chamber 61 gradually decreases from top to bottom, so that the Chinese medicine is gradually broken and ground during the falling process, and the Chinese medicine is prevented from piling up at the same height in the grinding chamber 61 .

[0025] The ring width of the storage cavity 62 remains unchanged from top to bottom, and a plurality of spacer rings 64 are fixedly embedded in the grinding barrel 1 and arranged in the corresponding storage cavity 62. After grinding, the Chinese medicine in the grinding cavity 61 will fall downward into the storage cavity 62 and accumulate on the upper surface of the spacer ring 64, realizing temporary storage of the Chinese medicine.

[0026] like Figure 4 and Figure 5As shown, a material drop opening 641 is provided on the material spacer ring 64, and the material storage cavity 62 located on the upper side is connected to the grinding cavity 61 located on the lower side through the material drop opening 641; a plurality of scraper assemblies 65 are provided on the outer wall of the grinding shell 3 and are rotatably embedded in the corresponding material storage cavity 62, and the scraper assemblies 65 are in contact with the upper surface of the material spacer ring 64. During the rotation of the grinding shell 3, the grinding shell 3 will drive the scraper assemblies 65 to rotate in the material storage cavity 62, and the scraper assemblies 65 will scrape the Chinese medicine on the upper surface of the material spacer ring 64, so that the Chinese medicine falls into the next grinding cavity 61 through the material drop opening 641, so as to realize the gradual grinding of the Chinese medicine.

[0027] It is worth mentioning that the setting of the spacer ring 64 allows a certain amount of Chinese medicine to be temporarily stored in each storage chamber 62, and the grinding chamber 61 can prevent the Chinese medicine from piling up at the same height, so that the Chinese medicine can be dispersed as much as possible, reducing the probability of Chinese medicine accumulation and blockage, and the Chinese medicine with qualified particle size and the Chinese medicine with unqualified particle size can be dispersed as much as possible, thereby improving the grinding effect and grinding efficiency of the Chinese medicine.

[0028] like Figure 3 As shown, the inner wall of the grinding barrel 1 is provided with a plurality of accommodating chambers 13 arranged axially around the axis of the grinding barrel 1, and a vertically arranged rotating shaft 14 is rotatably connected in the accommodating chamber 13, and the lower end of the rotating shaft 14 is connected to the lower end of the rotating rod 52 through a belt transmission, and a plurality of crushing leaves 15 respectively arranged in the corresponding grinding chambers 61 are installed on the rotating shaft 14. When the crushed Chinese medicine falls into the grinding chamber 61, the motor 51 can drive the rotating shaft 14 to rotate through the rotating rod 52, and the rotating shaft 14 will drive the crushing leaves 15 to rotate and crush the Chinese medicine in the grinding chamber 61, thereby improving the crushing effect of the Chinese medicine.

[0029] like Figure 5 and Figure 6 As shown, the scraper assembly 65 includes an outer shell 651 and an inner plate 652. The inner plate 652 is slidably embedded in the outer shell 651 in the vertical direction, and the inner plate 652 is connected to the outer shell 651 through a spring 653. The outer shell 651 can rotate on a horizontal plane and is rotatably connected to the outer wall of the grinding shell 3. The outer shell 651 is also connected to the outer wall of the grinding shell 3 through a torsion spring 654. When the spring 653 and the torsion spring 654 are in a natural state, the lower surface of the inner plate 652 will contact the upper surface of the spacer ring 64, and the side of the outer shell 651 away from the grinding shell 3 will contact the inner wall of the grinding barrel 1, so that the inner plate 652 pushes the Chinese medicine on the upper surface of the spacer ring 64 to move.

[0030] like Figure 8As shown, a guide plate 66 is installed at the accommodating chamber 13. When the scraper assembly 65 moves to the accommodating chamber 13, the outer shell 651 will abut against the guide plate 66, so that the scraper assembly 65 rotates away from the movement trajectory of the crushing leaves 15 to avoid the scraper assembly 65 from colliding with the crushing leaves 15; when the scraper assembly 65 passes through the accommodating chamber 13, the outer shell 651 will be separated from the guide plate 66, and the torsion spring 654 will return to its natural state, so that the scraper assembly 65 flips over and resets and abuts against the inner wall of the grinding barrel 1, so that the inner plate 652 continues to push the Chinese medicine in the storage chamber 62 to move.

[0031] like Figure 5 and Figure 6 As shown, a guide seat 67 is installed on the upper surface of the spacer ring 64, and an ascending surface 671 and a descending surface 672 are arranged on the guide seat 67. The inner plate 652 will pass through the ascending surface 671, the descending surface 672, the accommodating cavity 13 and the material discharge port 641 in sequence during the rotation of the grinding shell 3. When the inner plate 652 pushes the Chinese medicine to the ascending surface 671, the Chinese medicine will rise along the ascending surface 671; when the inner plate 652 moves to the highest point of the ascending surface 671, the Chinese medicine will separate from the ascending surface 671 and make a parabolic motion. At this time, the Chinese medicine will rise to the crushing leaf 15, so that the crushing leaf 15 can crush the Chinese medicine in the material storage cavity 62 again, thereby improving the crushing effect of the Chinese medicine; the crushed Chinese medicine will fall to the upper surface of the spacer ring 64 after separating from the crushing leaf 15, so that the inner plate 652 can push this part of the Chinese medicine to the material discharge port 641 for discharge.

[0032] like Figure 7 As shown, the sieve plate 4 is fixedly embedded in the grinding barrel 1. The Chinese medicine ground by the grinding unit 6 will fall to the upper surface of the sieve plate 4. The Chinese medicine with qualified particle size will pass through the sieve holes of the sieve plate 4 and be discharged through the discharge pipe 12. The Chinese medicine with unqualified particle size will accumulate on the upper surface of the sieve plate 4.

[0033] like Fig. 9 As shown, a plurality of baffle plates 41 are installed on the upper surface of the sieve plate 4, and every two adjacent baffle plates 41 are arranged at intervals, and the baffle plates 41 are arranged in an arc shape on one side away from the center of the sieve plate 4. The baffle plates 41 can block and guide the Chinese medicine on the upper surface of the sieve plate 4, so that the Chinese medicine slides down in a snake shape, prolonging the movement time of the Chinese medicine on the sieve plate 4, thereby improving the screening effect of the sieve plate 4 on the Chinese medicine.

[0034] The height of the upper surface of the sieve plate 4 gradually decreases from its edge to its center, so that the Chinese medicine falling onto the sieve plate 4 will gather toward the center of the sieve plate 4 to avoid the edge of the sieve plate 4 being blocked.

[0035] like Figure 4 and Figure 7As shown, the center of the upper surface of the sieve plate 4 is connected to a return barrel 43 through a plurality of connecting rods 42. The return barrel 43 is vertically arranged, and the lower end opening of the return barrel 43 is arranged with a gap between the upper surface of the sieve plate 4; a spiral blade rotatably embedded in the return barrel 43 is installed on the rotating rod 52, and a return opening 31 is arranged at the center of the upper surface of the grinding shell 3, and the return opening 31 is connected to the upper end opening of the return barrel 43. During the rotation of the rotating rod 52, the rotating rod 52 will drive the spiral blade to rotate in the return barrel 43, and the spiral blade will spirally transport the Chinese medicine with unqualified particle size at the center of the sieve plate 4 upward, and the Chinese medicine will move to the upper surface of the grinding shell 3 through the return opening 31, so that the Chinese medicine with unqualified particle size is ground and crushed again.

[0036] A first wind chamber 53 is provided inside the rotating rod 52, and a second wind chamber 32 is provided between the inner and outer walls of the grinding shell 3; a hot air blower 7 is installed at the bottom of the grinding barrel 1, and an air duct 71 is connected to the hot air blower 7. The air duct 71 rotates around the axis of the rotating rod 52 and is connected to the first wind chamber 53. The first wind chamber 53 is connected to the second wind chamber 32. A plurality of first jet holes 33 are provided on the outer wall of the grinding shell 3. The first jet holes 33 are connected to the second wind chamber 32 and face the upper surface of the spacer ring 64. The hot air blower 7 can introduce hot air into the first air chamber 53 and the second air chamber 32 through the air duct 71. The hot air in the first air chamber 53 can dry the Chinese medicine through the rotating rod 52, and the hot air in the second air chamber 32 can dry the Chinese medicine through the grinding shell 3. The hot air in the second air chamber 32 can be sprayed to the upper surface of the spacer ring 64 through the first jet hole 33, so that the Chinese medicine in the storage chamber 62 is dried, and the wind force of the hot air has a certain blowing force on the Chinese medicine, thereby preventing the Chinese medicine from accumulating and adhering to the storage chamber 62.

[0037] The lower end of the grinding shell 3 is bent toward the center of the grinding shell 3 and is provided with a plurality of second jet holes 34, which are connected to the second air cavity 32 and face the upper surface of the sieve plate 4. The hot air in the second air cavity 32 can be sprayed onto the upper surface of the sieve plate 4 through the second jet holes 34, so that the Chinese medicine on the sieve plate 4 is dried, and the wind force of the hot air has a certain blowing force on the Chinese medicine, so as to prevent the Chinese medicine from accumulating on the edge of the sieve plate 4.

[0038] The implementation principle of the Chinese medicine grinding device in the embodiment of the present application is as follows: during the grinding process of Chinese medicine, the Chinese medicine will enter the grinding barrel 1 through the feed hopper 11, the motor 51 will drive the rotating rod 52 to rotate through the belt transmission, the rotating rod 52 will drive the crushing paddle 2 to rotate and crush the Chinese medicine entering the grinding barrel 1, and the crushed Chinese medicine will enter the grinding chamber 61 directly or indirectly through the guidance of the upper surface of the grinding shell 3; at this time, the motor 51 also drives the grinding shell 3 and the rotating shaft 14 to rotate through the rotating rod 52, and the grinding teeth 63 on the grinding shell 3 cooperate with the grinding teeth 63 on the grinding barrel 1 to achieve secondary crushing and primary grinding of the Chinese medicine, and the rotating shaft 14 will drive the crushing blades 15 to rotate and crush the Chinese medicine in the grinding chamber 61; then the Chinese medicine will fall downward into the storage chamber 62 and accumulate on the upper surface of the spacer ring 64, The inner plate 652 will push the Chinese medicine on the upper surface of the spacer ring 64 to move, and the Chinese medicine will be pushed to the rising surface 671 and rise to the crushing leaves 15, and the rotating crushing leaves 15 will crush the Chinese medicine three times; thereafter, the Chinese medicine will fall through the drop port 641 into the lower grinding chamber 61 under the dual action of the thrust of the inner plate 652 and the hot air force ejected from the first jet hole 33, thereby achieving multiple crushing and grinding of the Chinese medicine; then the Chinese medicine will fall to the upper surface of the sieve plate 4, and under the dual action of its own gravity and the hot air force ejected from the second jet hole 34, the Chinese medicine will converge to the center of the sieve plate 4, and the Chinese medicine with qualified particle size will pass through the sieve holes of the sieve plate 4 and be discharged through the discharge pipe 12, and the Chinese medicine with unqualified particle size will be spirally transported upward by the spiral blades to the upper surface of the grinding shell 3 for further crushing and grinding.

[0039] In summary, the present application can temporarily store the Chinese medicine in batches in various areas within the grinding barrel 1, and realize multiple grinding and multiple crushing of the Chinese medicine, thereby improving the grinding effect and grinding efficiency of the Chinese medicine.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A Chinese medicine grinding device, comprising a grinding barrel (1) having a feed hopper (11) and a discharge pipe (12), characterized in that: A crushing paddle (2) and a grinding shell (3) are arranged in sequence from top to bottom in the grinding barrel (1); the crushing paddle (2), the grinding shell (3) and the grinding barrel (1) are arranged coaxially; the feed hopper (11) is located above the crushing paddle (2), and the discharge pipe (12) is located below the grinding shell (3); The height of the upper surface of the grinding shell (3) gradually decreases from the center to the edge thereof. A plurality of grinding units (6) arranged in sequence in a vertical direction are provided between the outer wall of the grinding shell (3) and the inner wall of the grinding barrel (1). The grinding unit (6) comprises a grinding chamber (61) and a material storage chamber (62) which are arranged in an annular shape and connected to each other from top to bottom. The annular width of the grinding chamber (61) gradually decreases from top to bottom, and the annular width of the material storage chamber (62) remains unchanged from top to bottom. A plurality of grinding teeth (63) located in the grinding cavity (61) are provided on the outer wall of the grinding shell (3) and the inner wall of the grinding barrel (1); a plurality of spacer rings (64) respectively arranged in the corresponding material storage cavities (62) are fixedly embedded in the grinding barrel (1); a material drop opening (641) is provided on the spacer ring (64); the material storage cavity (62) located on the upper side is connected to the grinding cavity (61) located on the lower side through the material drop opening (641); a plurality of scraper assemblies (65) rotatably embedded in the corresponding material storage cavities (62) are provided on the outer wall of the grinding shell (3); the scraper assemblies (65) are in contact with the upper surface of the spacer ring (64); It also includes a driving unit (5) for driving the crushing blade (2) and the grinding shell (3) to rotate.

2. The Chinese medicine grinding device according to claim 1, characterized in that: The inner wall of the grinding barrel (1) is provided with a receiving chamber (13), a rotating shaft (14) arranged vertically is rotatably connected in the receiving chamber (13), and a plurality of crushing leaves (15) arranged in corresponding grinding chambers (61) are mounted on the rotating shaft (14); The scraper assembly (65) can rotate on a horizontal plane and is rotatably connected to the outer wall of the grinding shell (3). The scraper assembly (65) is also connected to the outer wall of the grinding shell (3) via a torsion spring (654). When the torsion spring (654) is in a natural state, the scraper assembly (65) will contact the inner wall of the grinding barrel (1). A guide plate (66) for the scraper assembly (65) to rotate against is provided at the accommodating chamber (13); after the scraper assembly (65) abuts against the guide plate (66), it will rotate away from the movement track of the crushing blade (15); The driving unit (5) can also drive the rotating shaft (14) to rotate.

3. The Chinese medicine grinding device according to claim 2, characterized in that: The scraper assembly (65) comprises an outer shell (651) and an inner plate (652), wherein the inner plate (652) is slidably embedded in the outer shell (651) along a vertical direction, and the inner plate (652) is connected to the outer shell (651) via a spring (653), and when the spring (653) is in a natural state, the lower surface of the inner plate (652) will abut against the upper surface of the spacer ring (64); A material guide seat (67) is provided on the upper surface of the material spacer ring (64), and an ascending surface (671) and a descending surface (672) which are arranged in an inclined manner are provided on the material guide seat (67); The inner plate (652) will sequentially pass through the ascending surface (671), the descending surface (672), the accommodating chamber (13) and the material discharge port (641) as it rotates with the grinding shell (3). The Chinese medicine pushed away from the ascending surface (671) by the inner plate (652) will make a parabolic motion and move to the crushing leaves (15).

4. The Chinese medicine grinding device according to claim 3, characterized in that: A sieve plate (4) is fixedly embedded in the grinding barrel (1), and the sieve plate (4) is located between the grinding shell (3) and the discharge pipe (12), and the height of the upper surface of the sieve plate (4) gradually decreases from its edge to its center.

5. The Chinese medicine grinding device according to claim 4, characterized in that: The driving unit (5) comprises a rotating rod (52) and a motor (51); the rotating rod (52) is coaxially connected to the grinding shell (3) and the crushing paddle (2); the rotating rod (52) is rotatably disposed at the center of the sieve plate (4) and is rotatably connected to the grinding barrel (1); the rotating rod (52) is connected to the rotating shaft (14) and the output shaft of the motor (51) via a belt drive; and the motor (51) is mounted on the grinding barrel (1).

6. The Chinese medicine grinding device according to claim 5, characterized in that: A return barrel (43) is connected to the center of the upper surface of the sieve plate (4) via a connecting rod (42); the return barrel (43) is vertically arranged, and a lower opening of the return barrel (43) is arranged with a gap from the upper surface of the sieve plate (4); The rotating rod (52) is provided with a spiral blade rotatably embedded in the return barrel (43). A return opening (31) is provided at the center of the upper surface of the grinding shell (3). The return opening (31) is connected to the upper end opening of the return barrel (43).

7. The Chinese medicine grinding device according to claim 6, characterized in that: A first air cavity (53) is provided inside the rotating rod (52), and a second air cavity (32) is provided between the inner and outer walls of the grinding shell (3); The grinding barrel (1) is provided with a hot air blower (7), the hot air blower (7) is connected to an air duct (71), the air duct (71) rotates around the axis of the rotating rod (52) and is connected to the first air cavity (53), the first air cavity (53) is connected to the second air cavity (32), and a plurality of first air jet holes (33) are provided on the outer wall of the grinding shell (3), the first air jet holes (33) are connected to the second air cavity (32) and face the upper surface of the spacer ring (64).

8. The Chinese medicine grinding device according to claim 7, characterized in that: The lower end of the grinding shell (3) is bent toward the center of the grinding shell (3) and is provided with a plurality of second air jet holes (34); the second air jet holes (34) are connected to the second air cavity (32) and face the upper surface of the sieve plate (4).

9. The Chinese medicine grinding device according to claim 8, characterized in that: A plurality of baffle plates (41) are provided on the upper surface of the sieve plate (4), and each two adjacent baffle plates (41) are arranged at intervals. A guide surface arranged in an arc shape and used to guide the Chinese medicine on the upper surface of the sieve plate (4) to slide downward is provided on one side of the baffle plate (41) away from the center of the sieve plate (4).

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