Circulating traditional Chinese medicine pulverizing device

Abstract

The invention discloses a circulating traditional Chinese medicine pulverizing device, and relates to the field of traditional Chinese medicine pulverization, the circulating traditional Chinese medicine pulverizing device comprises a tank body and a tank cover packaged at the top of the tank body, a circular-truncated-cone-shaped grinding roller is rotatably arranged in the tank body, the inner wall of the tank body is provided with a grinding surface, and a grinding gap with the space gradually reduced from top to bottom is formed between the grinding surface and the grinding roller; a discharging opening is formed in one side of the bottom of the tank body and connected with a dust filtering bag, a vertically-through shaft cavity is formed in the middle of the grinding roller, a feeding pipe penetrating through the shaft cavity is arranged at the bottom of the tank body, an axial flow impeller is rotationally arranged in the shaft cavity, and the axial flow impeller and the grinding roller are in transmission connection with a driving component. The traditional Chinese medicine materials rapidly reach a grinding area through conduction of airflow, the airflow can rapidly discharge and collect the materials ground into powder, the whole grinding and powder making process is accelerated, the normal-temperature airflow which is continuously sucked in is used for timely dissipating heat in grinding gaps, and the situation that components of the traditional Chinese medicine powder are damaged due to overheating is avoided.

Description

Technical Field

[0001] The invention relates to the field of Chinese medicine powder making, and in particular to a circulating Chinese medicine powder making device. Background Art

[0002] Traditional Chinese medicine powder making is a step before making traditional Chinese medicine into pills, powders, capsules, and granules. The cleaned and dried traditional Chinese medicine raw materials are first coarsely crushed and then refined into powder. There are many kinds of equipment used for traditional Chinese medicine powder making, such as blade crusher, ball mill, rotary mill, etc.

[0003] The principle of the above-mentioned powder making equipment is to crush the Chinese medicine into powder by high-speed cutting, impact or friction. In this process, a large amount of heat is generated due to a large amount of friction contact between the processing parts and the Chinese medicine. The heat will cause the heat-sensitive and volatile components in the Chinese medicine to decompose, volatilize or structurally destroy, thereby reducing the efficacy of the Chinese medicine. Traditional Chinese medicine powder making equipment lacks a targeted cooling mechanism. Summary of the invention

[0004] In order to make up for the shortcomings of the existing technical problems, the purpose of the present invention is to provide a circulating Chinese medicine powder making device, which is used to solve the problem that traditional Chinese medicine powder making equipment lacks a targeted cooling mechanism, and a large amount of heat is generated during the powder making process, which easily causes the decomposition, volatilization or structural damage of heat-sensitive and volatile components in the Chinese medicine.

[0005] In order to solve the problems of the prior art, the technical solution of the present invention is as follows: A circulating Chinese medicine powder making device comprises: a tank body and a tank cover encapsulated on the top of the tank body, a truncated cone-shaped grinding roller is rotatably arranged inside the tank body, the inner wall of the tank body has a grinding surface, a grinding gap with the space gradually decreasing from top to bottom is formed between the grinding surface and the grinding roller, a discharge port is provided on one side of the bottom of the tank body, a dust filter bag is connected to the discharge port, the middle part of the grinding roller has an axial cavity penetrating up and down, the bottom of the tank body has a feed pipe penetrating the axial cavity, an axial flow impeller is rotatably arranged in the axial cavity, the axial flow impeller and the grinding roller are respectively connected to a driving component by transmission, and the rotating axial flow impeller is used to drive the airflow to be conducted upward, so that the Chinese medicine material follows the air to penetrate the axial cavity upward and then enters the grinding gap.

[0006] Preferably, the inner wall of the tank cover is in the shape of a spherical surface that bulges upward, and a plurality of guide ribs are evenly distributed around the inner wall of the tank cover, and the guide ribs are twisted in the rotation direction of the axial flow impeller.

[0007] Preferably, a sieve plate is provided inside the tank body, and the sieve plate is located between the grinding gap and the discharge port. The sieve plate is used to filter the medicinal powder discharged from the grinding gap. The center position of the sieve plate has a through opening, and the through opening is aligned with the feed pipe and the shaft cavity. A spiral scraper is fixed to the bottom of the grinding roller, and the spiral scraper fits the upper surface of the sieve plate. The spiral scraper rotates with the grinding roller and is used to scrape the filter material on the surface of the sieve plate to gather it to the through opening.

[0008] Preferably, the sieve plate is concave with a low middle portion and high edges.

[0009] Preferably, the spiral scraper has at least five spiral turns.

[0010] Preferably, the feed pipe includes a rotating pipe, which is rotatably connected to the through port and is connected to a hose.

[0011] Preferably, the driving component includes a motor, the output end of the motor is connected to a transmission shaft, the transmission shaft is connected to a driving gear through a bevel gear set, a twister is provided at the end of the transmission shaft, a shaft cylinder is rotatably penetrated through the middle of the tank cover, a shaft rod is rotatably inserted in the shaft cylinder, the shaft cylinder is fixedly connected to the grinding roller, the shaft rod is fixedly connected to the axial flow impeller, a driven gear is fixed to the end of the shaft rod, the driven gear is meshedly connected to the driving gear, and the twister is meshedly connected to the shaft cylinder through the bevel gear set.

[0012] Preferably, the transmission ratio between the driving gear and the driven gear is greater than 1.

[0013] Preferably, the twister includes a disk shell, a cam shaft is rotatably arranged inside the disk shell, a plurality of torsion plates are annularly distributed inside the disk shell, one end of the torsion plate is rotatably connected to the edge position of the disk shell, and the other end of the torsion plate is supported by a spring to deflect toward the center position of the disk shell, the cam shaft has a plurality of arc-shaped protrusions for squeezing the torsion plates, the cam shaft is fixedly connected to the transmission shaft, an angle sensor is arranged at the rotating part of the transmission shaft and the disk shell, a core shaft is fixed at the center position of the end face of the disk shell, and the core shaft is connected to the shaft cylinder through a bevel gear set.

[0014] Preferably, the top of the shaft cavity is an expanded diameter portion, the axial flow impeller is rotatably arranged on the expanded diameter portion, and the bottom of the shaft cavity is in a closed shape.

[0015] Compared with the prior art, the advantages of the present invention are as follows: 1. The present invention feeds by suction, and the conduction of airflow enables the Chinese medicine materials to quickly reach the grinding area, and the airflow can quickly discharge and collect the ground materials, which speeds up the entire grinding and powdering process, and the constantly inhaled normal temperature airflow is used to timely evacuate the heat in the grinding gap to avoid overheating and damage to the components of the Chinese medicine powder.

[0016] 2. The sieve plate of the present invention filters powder, and larger particles of powder will be retained on the surface of the sieve plate. The spiral scraper rotates with the grinding roller, and the spiral scraper gradually conducts the powder retained on the surface of the sieve plate through the opening by scraping. The large particles are secondary introduced into the grinding gap through the upward airflow for repeated grinding, forming a cyclic grinding mode to improve the grinding fineness.

[0017] 3. The angle sensor of the present invention monitors the torsion angle between the transmission shaft and the disk shell, and is used to feedback the amount of material in the grinding gap, so as to facilitate timely acquisition of the signal that the Chinese medicine grinding is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall external structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the grinding gap structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the alignment structure of the spiral scraper and the screen plate of the present invention.

[0022] Figure 5 It is a schematic diagram of the distribution structure of the guide ribs of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the driving component of the present invention.

[0024] Figure 7 It is a schematic diagram of the twister structure of the present invention.

[0025] Figure 8 It is a schematic diagram of the alignment distribution structure of the torsion plate and the cam shaft of the present invention.

[0026] Figure numerals: 1. tank body; 11. grinding surface; 12. discharge port; 13. feed pipe; 2. tank cover; 21. guide ribs; 3. driving component; 31. motor; 32. transmission shaft; 33. twister; 331. disk shell; 332. cam shaft; 333. core shaft; 334. angle sensor; 335. torsion plate; 34. driving gear; 35. driven gear; 36. packaging shell; 4. grinding roller; 41. shaft cavity; 5. axial flow impeller; 6. shaft; 61. shaft cylinder; 7. sieve plate; 71. through port; 8. spiral scraper. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the Chinese medicine powder making device comprises a tank body 1, the tank body 1 has a cylindrical inner cavity, and the top opening is open, a tank cover 2 is sealed at the top opening of the tank body 1 by bolts to form a closed space, the inner wall of the tank body 1 has a grinding surface 11, a grinding roller 4 is centrally rotatably installed in the tank body 1, the grinding roller 4 is a truncated cone with a small top and a large bottom, a grinding gap with a space gradually decreasing from top to bottom is formed between the grinding surface 11 and the grinding roller 4, a discharge port 12 is arranged on the bottom side of the tank body 1, and the discharge port 12 is connected to a dust filter bag; like Figure 2 , Figure 3 As shown, an axial cavity 41 is provided along the middle of the grinding roller 4 and passes through the axial cavity 41, an axial flow impeller 5 is rotatably arranged in the axial cavity 41, a driving component 3 is arranged on the outside of the tank cover 2, and the grinding roller 4 and the axial flow impeller 5 are respectively connected to the driving component 3 by transmission; like Figure 2 , Figure 4 As shown, a sieve plate 7 is installed inside the tank body 1, and the sieve plate 7 is located between the grinding gap and the discharge port 12. The center of the sieve plate 7 has a through opening 71, and the through opening 71 is aligned with the shaft cavity 41 upward. A spiral scraper 8 is fixed at the bottom of the grinding roller 4, and the spiral scraper 8 slides and fits the upper surface of the sieve plate 7. The outer end of the spiral scraper 8 extends to the edge of the sieve plate 7, and the inner end of the spiral scraper 8 extends to the edge of the through opening 71. like Figure 2 As shown, a feed pipe 13 is provided at the bottom of the tank body 1, and the feed pipe 13 includes a rotating pipe, which penetrates into the tank body 1 and is rotatably connected to the through port 71, and the outside of the rotating pipe is connected to a hose; When Chinese medicine is powdered, the roughly processed Chinese medicine materials are placed together, and the driving component 3 is turned on to drive the grinding roller 4 and the axial flow impeller 5 to rotate. The air flow is driven upward by the axial flow impeller 5 to conduct, so that negative pressure is formed in the feed pipe 13. The operator holds the hose to draw the material, and the Chinese medicine material is sucked into the feed pipe 13 along with the air flow, and then passes through the shaft cavity 41 to enter the upper part of the grinding roller 4. At this time, the air flow is dispersed to the surroundings to guide the Chinese medicine material into the grinding gap. The rotating grinding roller 4 and the grinding surface 11 cooperate to grind the Chinese medicine material into powder, and the continuous inhalation The airflow passes through the grinding gap to conduct the powder downward. After being screened by the sieve plate 7, the powder enters the bottom of the tank 1 and follows the airflow through the discharge port 12 to be collected in the dust filter bag to realize the powdering of traditional Chinese medicine. This process feeds the material by suction, and the traditional Chinese medicine material quickly reaches the grinding area through the conduction of the airflow. The airflow can quickly discharge and collect the ground material, which speeds up the entire grinding and powdering process. The continuously inhaled normal temperature airflow is used to timely dissipate the heat in the grinding gap to avoid the destruction of the traditional Chinese medicine powder components caused by overheating.

[0029] The powder is filtered through the sieve plate 7, and larger particles of powder will be retained on the surface of the sieve plate 7. The spiral scraper 8 rotates along with the grinding roller 4, and the spiral scraper 8 gradually conducts the powder retained on the surface of the sieve plate 7 to the center by scraping. This process also promotes the powder to be spread out and screened, and the large particles of powder are pushed into the through port 71. The large particles are secondary introduced into the grinding gap through the upward airflow for repeated grinding, forming a cyclic grinding mode and improving the grinding fineness.

[0030] like Figure 2 , Figure 4 As shown, the powder falling from the grinding gap follows the air to the edge of the sieve plate 7, the raw material and airflow sucked by the feed pipe 13 pass through the center of the sieve plate 7, and are isolated by the flow spiral scraper 8 between the above two positions. The spiral scraper 8 has at least five layers of spiral circles, which increase the airflow resistance between the middle and edge positions of the sieve plate 7 and avoid obvious cross-flow between the two positions. The airflow introduced by the driving component 3 will not disperse to the edge of the sieve plate 7 to affect the discharge of the powder, and the powder falling from the grinding gap will not be conducted toward the direction of the opening 71, thereby forming a stable cycle grinding operation.

[0031] like Figure 2 As shown, the sieve plate 7 is concave with a low middle portion and high edges, so that the spiral scraper 8 can gradually gather and conduct the filtered and retained powder to the center of the sieve plate 7.

[0032] like Figure 5 As shown, the inner wall of the tank cover 2 is in the shape of a spherical surface that bulges upward, and is used to disperse the airflow and materials introduced into the shaft cavity 41 toward the edge. A number of guide ribs 21 are evenly distributed around the inner wall of the tank cover 2. The guide ribs 21 are twisted in the rotation direction of the axial flow impeller 5, so that the airflow and materials introduced into the shaft cavity 41 are conducted by the guide ribs 21 and evenly diffused into the grinding gap.

[0033] like Figure 2 As shown, the top of the shaft cavity 41 is an expanded diameter portion, and the axial flow impeller 5 is rotatably arranged at the expanded diameter portion. The bottom of the shaft cavity 41 is in a closed shape, so that a large negative pressure can be formed at the bottom of the shaft cavity 41 to improve the material suction strength.

[0034] The driving modes of the grinding roller 4 and the axial flow impeller 5 are as follows: like Figure 6As shown, the driving component 3 includes a motor 31, a packaging shell 36 is fixedly installed on the surface of the tank cover 2, the motor 31 is installed on the side of the packaging shell 36, the shaft cylinder 61 rotates and passes through the center position of the tank cover 2, the bottom end of the shaft cylinder 61 is fixedly connected to the grinding roller 4, the top of the shaft cylinder 61 penetrates into the packaging shell 36, the shaft rod 6 rotates and inserts in the shaft cylinder 61, the bottom end of the shaft rod 6 is fixedly connected to the axial flow impeller 5, the output end of the motor 31 penetrates into the packaging shell 36 to fix the transmission shaft 32, the transmission shaft 32 is connected to the driving gear 34 through the bevel gear set, the end of the shaft rod 6 is fixed with a driven gear 35, the driven gear 35 is meshed and connected to the driving gear 34, the transmission ratio of the driving gear 34 to the driven gear 35 is greater than 1, and the end of the transmission shaft 32 is provided with a twister 33, and the twister 33 is meshed and connected to the shaft cylinder 61 through the bevel gear set; The motor 31 drives the transmission shaft 32 to rotate, and the driving gear 34 is rotated through the transmission. The driving gear 34 meshes with the driven gear 35 to drive the shaft 6 to rotate, so that the shaft 6 drives the axial flow impeller 5 to rotate quickly. The transmission shaft 32 drives the shaft cylinder 61 to rotate through the twister 33, and the shaft cylinder 61 drives the grinding roller 4 to rotate, which can keep the grinding roller 4 and the axial flow impeller 5 rotating in the same direction. At this time, it is necessary to increase the speed difference between the axial flow impeller 5 and the grinding roller 4, or the grinding roller 4 and the axial flow impeller 5 can be kept rotating in the opposite direction.

[0035] like Figure 7 , Figure 8 As shown, the function of the twister 33 is to monitor the grinding condition. The twister 33 includes a disk shell 331, a convex shaft 332 is rotatably installed in the disk shell 331, and a plurality of torsion plates 335 are evenly distributed in an annular manner in the disk shell 331. One end of the torsion plate 335 is rotatably connected to the edge position of the disk shell 331, and the other end of the torsion plate 335 is supported by a spring to deflect toward the center position of the disk shell 331. The convex shaft 332 has a plurality of arc-shaped protrusions for squeezing the torsion plate 335. The convex shaft 332 is fixedly connected to the transmission shaft 32. A core shaft 333 is fixed at the center position of the end face of the disk shell 331. The core shaft 333 is connected to the shaft cylinder 61 through a bevel gear set. A hollow shaft angle sensor 334 is sleeved on the outer side of the transmission shaft 32. The main body of the angle sensor 334 is fixed to the disk shell 331, and the hollow shaft of the angle sensor 334 is connected to the transmission shaft 32. The angle sensor 334 is connected to the central control screen of the device through a controller. When the motor 31 drives the transmission shaft 32 to rotate, the transmission shaft 32 drives the cam 332 to rotate, and the cam 332 pushes the torsion plate 335, and the spring provides a reaction support force, so that the transmission shaft 32 drives the torsion plate 335 and the disk shell 331 to rotate, thereby driving the shaft cylinder 61 to rotate. The greater the rotation load of the shaft cylinder 61, the greater the amplitude of the compression of the spring by the cam 332 squeezing the torsion plate 335, and the greater the angular torsion between the transmission shaft 32 and the disk shell 331. Conversely, the rotation load of the shaft cylinder 61 decreases, and the angular amplitude between the transmission shaft 32 and the disk shell 331 decreases. The torsion angle of the transmission shaft 32 and the disk shell 331 is monitored by the angle sensor 334 to feedback the torsion load on the shaft cylinder 61. The load change on the shaft cylinder 61 is mainly caused by the change of material in the grinding gap. Therefore, the feedback information of the angle sensor 334 can be used to judge the amount of material in the grinding gap, so as to facilitate and timely obtain the signal that the Chinese medicine grinding is completed.

[0036] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A circulating Chinese medicine powder making device, comprising: A tank body (1) and a tank cover (2) sealed on the top of the tank body (1), a truncated cone-shaped grinding roller (4) is rotatably arranged inside the tank body (1), the inner wall of the tank body (1) has a grinding surface (11), a grinding gap with a space gradually decreasing from top to bottom is formed between the grinding surface (11) and the grinding roller (4), a discharge port (12) is provided on one side of the bottom of the tank body (1), and a dust filter bag is connected to the discharge port (12), characterized in that the middle part of the grinding roller (4) has an axial cavity (41) penetrating from top to bottom, the bottom of the tank body (1) has a feed pipe (13) penetrating the axial cavity (41), an axial flow impeller (5) is rotatably arranged in the axial cavity (41), the axial flow impeller (5) and the grinding roller (4) are respectively connected to a driving component (3), and the rotating axial flow impeller (5) is used to drive the air flow to be conducted upward, so that the Chinese medicinal material follows the air to penetrate the axial cavity (41) upward and then enters the grinding gap.

2. The circulating Chinese medicine powder making device according to claim 1, characterized in that: The inner wall of the tank cover (2) is in the shape of a spherical surface that bulges upward, and a plurality of flow guide ribs (21) are evenly distributed around the inner wall of the tank cover (2), and the flow guide ribs (21) are twisted in the rotation direction of the axial flow impeller (5).

3. The circulating Chinese medicine powder making device according to claim 1, characterized in that: A sieve plate (7) is arranged inside the tank body (1). The sieve plate (7) is located between the grinding gap and the discharge port (12). The sieve plate (7) is used to filter the medicine powder discharged from the grinding gap. A through opening (71) is provided at the center of the sieve plate (7). The through opening (71) is aligned with the feed pipe (13) and the shaft cavity (41). A spiral scraper (8) is fixed at the bottom of the grinding roller (4). The spiral scraper (8) is in contact with the upper surface of the sieve plate (7). The spiral scraper (8) rotates with the grinding roller (4) and is used to scrape the filtered material on the surface of the sieve plate (7) to gather it at the through opening (71).

4. The circulating Chinese medicine powder making device according to claim 3, characterized in that: The sieve plate (7) is in a concave shape with a low middle portion and high edges.

5. The circulating Chinese medicine powder making device according to claim 3, characterized in that: The spiral scraper (8) has at least five spiral turns.

6. The circulating Chinese medicine powder making device according to claim 3, characterized in that: The feed pipe (13) comprises a rotating pipe, which is rotatably connected to the through port (71) and is connected to a hose.

7. The circulating Chinese medicine powder making device according to claim 1, characterized in that: The driving component (3) comprises a motor (31), the output end of the motor (31) is connected to a transmission shaft (32), the transmission shaft (32) is connected to a driving gear (34) via a bevel gear set, a twister (33) is arranged at the end of the transmission shaft (32), a shaft cylinder (61) is rotatably penetrated through the middle of the tank cover (2), a shaft rod (6) is rotatably inserted into the shaft cylinder (61), the shaft cylinder (61) is fixedly connected to the grinding roller (4), the shaft rod (6) is fixedly connected to the axial flow impeller (5), a driven gear (35) is fixedly connected to the end of the shaft rod (6), the driven gear (35) is meshingly connected to the driving gear (34), and the twister (33) is meshingly connected to the shaft cylinder (61) via the bevel gear set.

8. The circulating Chinese medicine powder making device according to claim 7, characterized in that: The transmission ratio between the driving gear (34) and the driven gear (35) is greater than 1.

9. The circulating Chinese medicine powder making device according to claim 7, characterized in that: The twister (33) comprises a disk shell (331), a convex shaft (332) rotatably arranged in the disk shell (331), a plurality of torsion plates (335) distributed in an annular manner in the disk shell (331), one end of the torsion plate (335) rotatably connected to the edge position of the disk shell (331), the other end of the torsion plate (335) is supported by a spring to deflect toward the center position of the disk shell (331), the convex shaft (332) has a plurality of arc-shaped protrusions for pressing the torsion plates (335), the convex shaft (332) is fixedly connected to the transmission shaft (32), an angle sensor (334) is arranged at the rotational position of the transmission shaft (32) and the disk shell (331), a core shaft (333) is fixedly arranged at the center position of the end surface of the disk shell (331), and the core shaft (333) is connected to the shaft cylinder (61) through a bevel gear set.

10. The circulating Chinese medicine powder making device according to claim 1, characterized in that: The top of the shaft cavity (41) is an expanded diameter portion, the axial flow impeller (5) is rotatably arranged on the expanded diameter portion, and the bottom of the shaft cavity (41) is in a closed shape.

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