Screening device for pulverizing traditional Chinese medicinal materials

Abstract

The screening device comprises a box body, two sets of supporting rods are arranged on the inner side of the box body, the box body is connected with a bearing frame in a sliding mode, one side of the bearing frame is connected with a driving mechanism, an installation frame is arranged on the inner side of the bearing frame, the inner side of the installation frame is connected with a screen through a clamping mechanism, and a vibration mechanism is installed at the bottom of the bearing frame. The driving mechanism can drive the bearing frame, the mounting frame and the screen to do reciprocating swing motion, so that screening operation of traditional Chinese medicine powder can be facilitated, the vibrating mechanism can enable the screen to generate high-frequency vibration, powder particles are prevented from being accumulated and blocked at holes of the screen, smooth screening is guaranteed, and the screening efficiency is improved. According to the traditional Chinese medicine powder screening device, through the arranged clamping mechanism, the screen mesh can be conveniently disassembled and cleaned, then through the structure, the screen mesh can be conveniently disassembled, assembled and cleaned, and the screening efficiency of traditional Chinese medicine powder is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine processing technology, specifically a screening device for grinding traditional Chinese medicine into powder. Background Technology

[0002] In the preparation of Chinese medicinal herbs, it is often necessary to process them into powder. During the powder preparation process, the medicinal powder needs to be sieved to separate out the powder with the required particle size for further processing, while the powder that does not meet the requirements needs to be ground again.

[0003] The existing powder screening devices contain non-removable screen structures, which cause powder residue to accumulate and harden on the screen over time, making them difficult to clean and reducing screening efficiency. Furthermore, existing powder screening devices only perform sieving without vibrating the screen, resulting in poor screening performance and reduced efficiency. Therefore, it is necessary to design a new powder screening device for grinding Chinese medicinal materials to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a screening device for grinding Chinese medicinal materials into powder, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for grinding Chinese medicinal materials, comprising a box body, a feeding port at the top of the box body, a cover plate hinged to the top of the feeding port, a collection box slidably connected to the bottom of the box body, two sets of support rods slidably connected to a support frame on the inner side of the box body between the feeding port and the collection box, one side of the support frame is connected to a drive mechanism for easy swinging, an mounting frame is provided on the inner side of the support frame, a screen is connected to the inner side of the mounting frame through a snap-fit ​​mechanism for easy disassembly and assembly, and a vibration mechanism is installed at the bottom of the support frame to prevent the screen from clogging.

[0006] Preferably, the locking mechanism includes locking blocks. One end of the screen is provided with insertion slots near both ends. Two sets of sliding grooves are symmetrically formed on the inner wall of each insertion slot near its end. A fixing rod is provided on the inner side of each set of sliding grooves. The locking blocks, slidably connected to the fixing rods, pass through the inner side of each set of sliding grooves. One side of each set of locking blocks is connected to one side of the inner wall of the sliding groove via a second spring sleeved on the outer ring of the fixing rod. Two sets of fixing shafts are correspondingly provided on the inner side of the mounting frame near both ends. One end of each fixing shaft is connected to a fixing boss. A movable boss, arranged opposite to the fixing boss, is slidably connected to the outer ring of the fixing shaft. An abutment ring is sleeved on the outer ring of the movable boss. One side of the abutment ring is connected to the mounting frame via four sets of third springs.

[0007] Preferably, the contact surface between the card block and the fixed boss is sloped.

[0008] Preferably, the driving mechanism includes a first motor, a transmission compartment is provided on one side of the housing, the first motor is installed at the bottom of the transmission compartment, the output end of the first motor extends to the inside of the transmission compartment and is connected to a turntable, a rotating shaft is provided near the edge of the turntable, the rotating shaft is rotatably connected to one end of the transmission rod, and the other end of the transmission rod is rotatably connected to a connecting shaft provided on one side of the support frame.

[0009] Preferably, the vibration mechanism includes a second motor, and the inner side of the support frame is provided with four sets of limiting rods. The mounting frame is slidably connected to the four sets of limiting rods. The top of the mounting frame is connected to the support frame through four sets of first springs respectively sleeved on the outer ring of the four sets of limiting rods. The bottom of the mounting frame is provided with arc-shaped platforms near both ends. Abutment plates are provided below the two sets of arc-shaped platforms. The second motor is connected to one side of the two sets of abutment plates. The two sets of second motors are installed at the bottom of the support frame.

[0010] Preferably, a flow guide is provided below the feeding port and below the screen.

[0011] Preferably, a door is hinged to one side of the box, an observation window is provided on one side of the door, four sets of universal casters with brakes are installed at the bottom of the box, and a handle is installed on one side of the box.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this invention, when the screen is pushed inwards towards the mounting frame, the fixed shaft and fixed boss can penetrate the inner side of the insertion groove. While the screen is continuously pressed, the two sets of locking blocks, through their contact with the fixed boss, can move inwards towards the two sets of sliding grooves. Simultaneously, the two sets of locking blocks can compress the two sets of second springs. When the two sets of locking blocks move to one side of the fixed boss, the reaction force of the two sets of second springs can drive the two sets of locking blocks towards the center position, allowing them to penetrate one side of the fixed boss. Then, through the action of the contact ring and four sets of third springs, the two sets of locking blocks can be fixed against the fixed boss. This allows for the installation of the screen. When the screen needs to be disassembled and removed, by continuing to press the screen, the screen can move two sets of locking blocks to one side of the movable boss. When the screen loses pressure, under the reaction force of the contact ring and four sets of third springs, the screen and the two sets of locking blocks can move outward of the mounting frame. The two sets of locking blocks can then move the movable boss outward. When the movable boss abuts against the fixed boss, the two sets of locking blocks can slide outward along the movable boss and disengage from the fixed boss, thus completing the disassembly and removal of the screen. This design facilitates the disassembly, assembly, and cleaning of the screen, ensuring the screening efficiency of the screen.

[0014] 2. This utility model uses a first motor to drive a turntable in circular motion. A rotating shaft at the edge of the turntable rotates with it, driving a transmission rod connected to it. The transmission rod oscillates with the turntable's rotation, transmitting the oscillation to a support frame. This support frame then drives the mounting frame and screen to oscillate, thus sieving the medicinal herb powder. A second motor is activated, driving a contact plate in circular motion. As the contact plate rotates, it continuously contacts the curved platform. When the contact plate contacts the platform, it exerts an upward thrust. Under this thrust, the mounting frame moves upward along a limit rod and compresses the first spring. As the contact plate continues to rotate away from the curved platform, the mounting frame moves downward under the spring force of the first spring. This cycle repeats, causing the mounting frame to vibrate up and down. This vibration is transmitted to the screen, preventing blockage and ensuring smooth sieving. Therefore, this design significantly improves the sieving efficiency of medicinal herb powder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a side sectional view of the present invention;

[0018] Figure 4 This is a side sectional view of the mounting frame and screen section;

[0019] Figure 5 for Figure 2 Enlarged view of part A in the image;

[0020] Figure 6 for Figure 3 Enlarged view of part B in the image;

[0021] Figure 7 for Figure 4 Enlarged view of section C in the image.

[0022] In the diagram: 1. Box body, 2. Feeding port, 3. Cover plate, 4. Collection box, 5. Support rod, 6. Support frame, 7. Transmission chamber, 8. First motor, 9. Turntable, 10. Rotating shaft, 11. Transmission rod, 12. Connecting shaft, 13. Limiting rod, 14. Mounting frame, 15. First spring, 16. Arc-shaped platform, 17. Contact plate, 18. Second motor, 19. Screen, 20. Insertion groove, 21. Slide groove, 22. Fixed rod, 23. Locking block, 24. Second spring, 25. Fixed shaft, 26. Fixed boss, 27. Movable boss, 28. Contact ring, 29. Third spring, 30. Flow guide, 31. Box door, 32. Observation window, 33. Universal wheel with brake, 34. Handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please refer to Figure 1-7 As shown, this utility model provides a screening device for grinding Chinese medicinal materials, including a box body 1. The top of the box body 1 is provided with a feeding port 2. A cover plate 3 is hinged to the top of the feeding port 2. A collection box 4 is slidably connected to the bottom of the box body 1. Two sets of support rods 5 are provided on the inner side of the box body 1 between the feeding port 2 and the collection box 4 and are slidably connected to a support frame 6. A drive mechanism for easy swinging is connected to one side of the support frame 6. An installation frame 14 is provided on the inner side of the support frame 6. A screen 19 is connected to the inner side of the installation frame 14 through a snap-fit ​​mechanism for easy disassembly and assembly. A vibration mechanism to prevent the screen 19 from clogging is installed at the bottom of the support frame 6.

[0026] Specifically, the feeding port 2 facilitates the input of Chinese medicinal powder, the collection box 4 collects the screened Chinese medicinal powder, the drive mechanism drives the support frame 6, the mounting frame 14 and the screen 19 to reciprocate, thus facilitating the screening of Chinese medicinal powder, the vibration mechanism generates high-frequency vibration of the screen 19 to prevent powder particles from accumulating and clogging at the holes of the screen 19, ensuring smooth screening, and the locking mechanism facilitates the disassembly and assembly of the screen 19 for easy cleaning. Thus, the above structure facilitates the disassembly, assembly and cleaning of the screen 19, greatly improving the screening efficiency of Chinese medicinal powder.

[0027] The locking mechanism includes a locking block 23. A slot 20 is provided at one end of the screen 19 near both ends. Two sets of sliding grooves 21 are symmetrically provided on the inner wall of the slot 20 near the ends. A fixing rod 22 is provided on the inner side of each sliding groove 21. A locking block 23, slidably connected to the fixing rod 22, passes through the inner side of each sliding groove 21. One side of each locking block 23 is connected to one side of the inner wall of the sliding groove 21 via a second spring 24 sleeved on the outer ring of the fixing rod 22. Two sets of fixing shafts 25 are correspondingly provided on the inner side of the mounting bracket 14 near both ends. A fixing boss 26 is connected to one end of each fixing shaft 25. The outer ring of the fixed shaft 25 is slidably connected to a movable boss 27 that is opposite to the fixed boss 26. An abutment ring 28 is fitted around the outer ring of the movable boss 27. One side of the abutment ring 28 is connected to the mounting bracket 14 via four sets of third springs 29. The contact surface between the locking block 23 and the fixed boss 26 is sloped. When the screen 19 is pushed inwards towards the mounting bracket 14, the fixed shaft 25 and the fixed boss 26 can pass through the inner side of the insertion groove 20. While the screen 19 is continuously pressed, the two sets of locking blocks 23 can move inwards towards the two sets of sliding grooves 21 due to the abutment against the fixed boss 26. Simultaneously, the two sets of second springs 24 can be compressed. When the two sets of locking blocks 23 move to one side of the fixed boss 26, the reaction force of the two sets of second springs 24 can drive the two sets of locking blocks 23 to move towards the center position, so that the two sets of locking blocks 23 can pass through one side of the fixed boss 26. Then, under the action of the abutment ring 28 and the four sets of third springs 29, the two sets of locking blocks 23 can be abutted and fixed to the fixed boss 26, thus completing the installation of the screen 19. When it is necessary to disassemble and remove the screen 19, by continuing to press the screen 19, the screen 19 can drive the two sets of locking blocks 23 to move. When the screen 19 is moved to one side of the movable boss 27, and the screen 19 loses its pressing force, under the action of the reaction force of the contact ring 28 and the four sets of third springs 29, the screen 19 and the two sets of locking blocks 23 can be moved to the outside of the mounting frame 14. The two sets of locking blocks 23 can move the movable boss 27 to the outside. When the movable boss 27 abuts against the fixed boss 26, the two sets of locking blocks 23 can slide out along the movable boss 27 and disengage from the fixed boss 26, thereby completing the disassembly and removal of the screen 19. Thus, by setting it up, the disassembly, assembly and cleaning of the screen 19 is facilitated, and the screening efficiency of the screen 19 is guaranteed.

[0028] The drive mechanism includes a first motor 8. A transmission chamber 7 is located on one side of the housing 1. The first motor 8 is mounted on the bottom of the transmission chamber 7. The output end of the first motor 8 extends to the inside of the transmission chamber 7 and is connected to a turntable 9. A rotating shaft 10 is located near the edge of the turntable 9. The rotating shaft 10 is rotatably connected to one end of a transmission rod 11, and the other end of the transmission rod 11 is rotatably connected to a connecting shaft 12 located on one side of the support frame 6. When the first motor 8 is turned on, the output shaft of the first motor 8 drives the turntable 9 connected to it to perform circular motion within the transmission chamber 7. The rotating shaft 10 at the edge of the turntable 9 rotates along with the turntable 9, driving the transmission rod 11 rotatably connected to it. Position 0 is close to the edge of turntable 9. The transmission rod 11 swings with the rotation of turntable 9. The other end of the transmission rod 11 is rotatably connected to the connecting shaft 12 on one side of the support frame 6. The swing of the transmission rod 11 can be transmitted to the support frame 6, causing the support frame 6 to swing back and forth with its sliding connection point with the box 1 as the fulcrum. This can drive the mounting frame 14 and the screen 19 installed on the support frame 6 to swing, realizing the screening action of Chinese herbal medicine powder. The vibration mechanism includes a second motor 18. The inner side of the support frame 6 is provided with four sets of limiting rods 13. The mounting frame 14 is slidably connected to the four sets of limiting rods 13. The top of the mounting frame 14 is connected to the outer ring of the four sets of limiting rods 13 by four sets of limiting rods 13 respectively. A spring 15 is connected to the support frame 6. The bottom of the mounting frame 14 is provided with arc-shaped platforms 16 near both ends. Each of the two arc-shaped platforms 16 has a contact plate 17 below it. A second motor 18 is connected to one side of each contact plate 17. Both second motors 18 are installed at the bottom of the support frame 6. By starting the second motors 18, the second motors 18 can drive the contact plates 17 to perform circular motion. Since the contact plates 17 and the arc-shaped platforms 16 cooperate with each other, as the contact plates 17 rotate, they will continuously contact the arc-shaped platforms 16. When the contact plate 17 rotates to contact the arc-shaped platform 16, it will generate an upward pushing force on the arc-shaped platform 16. Because the mounting frame 14 is connected by a limiting rod 1... 3 is slidably connected to the support frame 6 and connected to the top of the first spring 15. Under the pushing force of the contact plate 17, the mounting frame 14 will move upward along the limit rod 13 and compress the first spring 15. When the contact plate 17 continues to rotate away from the arc-shaped platform 16, the mounting frame 14 will move downward under the elastic force of the first spring 15. This process is repeated, causing the mounting frame 14 to vibrate up and down. The mounting frame 14 is connected to the screen 19. The vibration of the mounting frame 14 can be transmitted to the screen 19, thereby preventing the screen 19 from clogging during the screening of Chinese medicinal powder and ensuring smooth screening. Thus, by setting it up, the screening efficiency of Chinese medicinal powder can be greatly improved.

[0029] The feed inlet 2 and the screen 19 are both equipped with flow guides 30. The flow guides 30 can be used to change the flow direction of the Chinese herbal medicine powder by utilizing the special curved surface structure of the flow guides 30, so that it flows according to the design path, preventing the Chinese herbal medicine powder from falling randomly and realizing directional conveying.

[0030] The box body 1 has a hinged door 31 on one side, and an observation window 32 on one side of the door 1. Four sets of universal casters 33 with brakes are installed at the bottom of the box body 1, and a handle 34 is installed on one side of the box body 1. The door 31 facilitates the maintenance and cleaning of the internal components of the box body 1. The observation window 32 allows for easy observation of the screening of Chinese medicinal powder. The universal casters 33 with brakes and the handle 34 facilitate the free movement of the device.

[0031] Working principle: First, the Chinese herbal medicine powder is fed into the box 1 through the feeding port 2. The powder falls into the inner side of the screen 19. Then, by turning on the first motor 8, the first motor 8 can rotate the turntable 9 and the rotating shaft 10 in a circular motion. The rotating shaft 10 can drive the transmission rod 11 connected to it in a rotating motion. The transmission rod 11 will swing with the rotation of the turntable 9. The swing of the transmission rod 11 can be transmitted to the support frame 6. The support frame 6 can drive the mounting frame 14 and the screen 19 to swing, thereby realizing the screening action of the Chinese herbal medicine powder. At the same time, by starting the second motor 18, the second motor 18 can drive the contact plate 17 in a circular motion. As the contact plate 17 rotates, it will continuously contact the arc-shaped platform. When the contact plate 17 rotates to contact the arc-shaped platform 16, it will generate an upward pushing force on the arc-shaped platform 16. Under the action of the pushing force of the contact plate 17, the mounting frame 14 will move upward along the limit rod 13 and compress the first spring 15. When the contact plate 17 continues to rotate away from the arc-shaped platform 16, under the action of the elastic force of the first spring 15, the mounting frame 14 will move downward again. This process is repeated, causing the mounting frame 14 to vibrate up and down. The vibration of the mounting frame 14 can be transmitted to the screen 19, thereby preventing the screen 19 from clogging during the screening of Chinese medicinal powder and ensuring that the screening work is carried out smoothly. After screening, powder smaller than the aperture of the screen 19 continuously falls into the collection box 4 for collection.

[0032] When the screen 19 needs to be disassembled, pressing the screen 19 will cause the two sets of locking blocks 23 to move to one side of the movable boss 27. When the screen 19 loses the pressing pressure, under the reaction force of the contact ring 28 and the four sets of third springs 29, the screen 19 and the two sets of locking blocks 23 can move to the outside of the mounting frame 14. The two sets of locking blocks 23 can move the movable boss 27 to the outside. When the movable boss 27 abuts against the fixed boss 26, the two sets of locking blocks 23 can slide out along the movable boss 27 and disengage from the fixed boss 26, thereby completing the disassembly and removal of the screen 19 and completing the entire operation process.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A screening device for grinding Chinese medicinal materials, comprising a housing (1), characterized in that: The top of the box (1) is provided with a feeding port (2), and the top of the feeding port (2) is hinged with a cover plate (3). The box (1) is slidably connected with a collection box (4) near the bottom. The inner side of the box (1) between the feeding port (2) and the collection box (4) is provided with two sets of support rods (5) and a support frame (6) is slidably connected. One side of the support frame (6) is connected with a drive mechanism to facilitate its swing. The inner side of the support frame (6) is provided with a mounting frame (14). The inner side of the mounting frame (14) is connected with a screen (19) through a snap-fit ​​mechanism that is easy to disassemble and assemble. The bottom of the support frame (6) is equipped with a vibration mechanism to prevent the screen (19) from getting clogged.

2. The screening device for grinding Chinese medicinal materials according to claim 1, characterized in that: The locking mechanism includes a locking block (23). One end of the screen (19) near both ends is provided with an insertion groove (20). The inner wall of the insertion groove (20) near the end is symmetrically provided with two sets of sliding grooves (21). A fixing rod (22) is provided on the inner side of each of the two sets of sliding grooves (21). The locking block (23) slidably connects to the fixing rod (22) through the inner side of each of the two sets of sliding grooves (21). One side of each of the two sets of locking blocks (23) is connected by a second spring (2) sleeved on the outer ring of the fixing rod (22). 4) Connected to the inner wall of the slide groove (21), the mounting bracket (14) has two sets of fixed shafts (25) on the inner side near both ends. One end of the fixed shaft (25) is connected to a fixed boss (26). The outer ring of the fixed shaft (25) is slidably connected to a movable boss (27) that is opposite to the fixed boss (26). The outer ring of the movable boss (27) is fitted with an abutment ring (28). One side of the abutment ring (28) is connected to the mounting bracket (14) through four sets of third springs (29).

3. The screening device for grinding Chinese medicinal materials according to claim 2, characterized in that: The contact surface between the card block (23) and the fixed boss (26) is sloped.

4. The screening device for grinding Chinese medicinal materials according to claim 1, characterized in that: The drive mechanism includes a first motor (8), a transmission chamber (7) is provided on one side of the housing (1), the first motor (8) is installed at the bottom of the transmission chamber (7), the output end of the first motor (8) extends to the inside of the transmission chamber (7) and is connected to a turntable (9), a rotating shaft (10) is provided near the edge of the turntable (9), the rotating shaft (10) is rotatably connected to one end of the transmission rod (11), and the other end of the transmission rod (11) is rotatably connected to the connecting shaft (12) provided on one side of the support frame (6).

5. A screening device for grinding Chinese medicinal materials according to claim 4, characterized in that: The vibration mechanism includes a second motor (18). The inner side of the support frame (6) is provided with four sets of limiting rods (13). The mounting frame (14) is slidably connected to the four sets of limiting rods (13). The top of the mounting frame (14) is connected to the support frame (6) through four sets of first springs (15) respectively sleeved on the outer ring of the four sets of limiting rods (13). The bottom of the mounting frame (14) is provided with arc-shaped platforms (16) near both ends. The bottom of the two sets of arc-shaped platforms (16) is provided with abutment plates (17). The second motor (18) is connected to one side of the two sets of abutment plates (17). The two sets of second motors (18) are installed at the bottom of the support frame (6).

6. The screening device for grinding Chinese medicinal materials according to claim 1, characterized in that: A flow guide (30) is provided below the feeding port (2) and below the screen (19).

7. A screening device for grinding Chinese medicinal materials according to claim 6, characterized in that: A door (31) is hinged to one side of the box (1), and an observation window (32) is provided on one side of the door (31). Four sets of universal casters (33) with brakes are installed at the bottom of the box (1), and a handle (34) is installed on one side of the box (1).

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