A pharmaceutical powder sieving structure

Abstract

This utility model provides a pharmaceutical powder sieving structure, including a frame, a mounting cylinder mounted on the frame, a vibration motor installed inside the mounting cylinder, a support platform mounted on the top of the mounting cylinder via an elastic component, a sieve disc mounted on the support platform via a fastening component, auxiliary components for assisting the sieve disc in sieving pharmaceutical powders mounted on the frame, and an auxiliary bagging component for assisting the loading of sieved pharmaceutical powders into bags mounted on the frame. In this utility model, the fastening component adopts a double-fixing structure. First, the sieve disc is initially fixed by a pressure plate, fastening bolts, and fastening nuts. Then, a rotating frame, screw, and pressure plate are used to further tighten the pressure plate, ensuring that the sieve disc remains stable under high-intensity vibration, preventing displacement and loosening, and guaranteeing sieving accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of pharmaceutical powder sieving, and specifically to a pharmaceutical powder sieving structure. Background Technology

[0002] In the pharmaceutical industry, the sieving of drug powders is a key step in ensuring drug quality and the smooth operation of subsequent production processes. Its core requirements are to achieve accurate grading, efficient sieving, and convenient collection of powders.

[0003] Existing pharmaceutical powder sieving equipment still has the following defects and shortcomings: 1) The fixed method of the sieve plate is simple, which is prone to loosening and displacement during high-frequency vibrating sieving, directly affecting the sieving accuracy and even causing powder to spill. 2) The bagging process relies on manual handling to align the bags with the feeding channel, which is cumbersome and unstable, easily causing powder spillage and waste, and also increases the labor intensity of the operators.

[0004] Therefore, a new solution is needed to address the defects and shortcomings of the existing technology. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, this utility model proposes a pharmaceutical powder sieving structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pharmaceutical powder sieving structure includes a frame, characterized in that: a mounting cylinder is provided on the top of the frame, a vibration motor is fixed inside the mounting cylinder, a support platform is mounted on the top of the mounting cylinder via an elastic component, the output end of the vibration motor is fixedly connected to the support platform, a sieve disc is mounted on the top of the support platform via a fastening component, and auxiliary components for assisting the sieve disc in sieving pharmaceutical powder and auxiliary bagging components for assisting the loading of pharmaceutical powder into a loading bag are also installed on the top of the frame.

[0007] As a further preferred embodiment of the present invention, the elastic component includes a sleeve, a slide rod, and a lifting elastic element. Several sleeves are fixed to the top of the mounting cylinder. A slide rod is slidably arranged inside each sleeve. The end of the slide rod away from the sleeve is fixedly connected to the bottom of the support platform. The lifting elastic element is sleeved on the outer periphery of the sleeve and the slide rod, and its two ends are fixedly connected to the mounting cylinder and the support platform, respectively.

[0008] As a further preferred embodiment of the present invention, the fastening assembly includes an assembly block fixed to the outer edge of the support platform, a pressure plate rotatably connected to the top of the assembly block, and a fastening bolt passing through the inside of the pressure plate.

[0009] As a further preferred embodiment of the present invention, a rotating frame is rotatably connected to the top of the assembly block, a screw is threadedly connected inside the rotating frame, and a pressure plate is fixedly connected to the outer edge of the screw.

[0010] As a further preferred embodiment of the present invention, a screen is provided inside the screen plate, the screen dividing the screen plate into upper and lower regions, and staggered feeding channels are provided in both the upper and lower regions of the screen plate.

[0011] As a further preferred embodiment of this utility model, the auxiliary component includes a support column installed on the top of the frame. The support column has a groove that is slidably connected to the bearing plate. An electric push rod is installed on the support column. The output end of the electric push rod is fixedly connected to the bearing plate. A motor is installed on the bearing plate. The output shaft of the motor is fixedly connected to a cleaning component. The cleaning component extends into the sieve tray to clean the medicine powder inside the sieve tray and accelerate the sieving process.

[0012] As a further preferred embodiment of the present invention, the cleaning component includes a rotating rod fixedly connected to the output shaft of the motor. The rotating rod passes through the screen inside the screen plate. Several cleaning rods are fixedly connected to the rotating rod at the top of the screen plate and at the outer edge of the bottom wall of the screen plate. Brushes are installed on the cleaning rods.

[0013] As a further preferred embodiment of this utility model, the auxiliary bagging assembly includes a support platform fixed to the top of the vehicle frame and located below the unloading channel. A threaded rod and a guide rod are fixed to the outer edge of the support platform. A nut ring is threadedly connected to the outer circumference of the threaded rod. The guide rod is disposed inside the nut ring. A protrusion is fixed to the outer side of the nut ring. A pressure plate is rotatably connected to the outer side of the nut ring via a shaft. A rotating elastic element is sleeved on the outer side of the shaft, with its two ends fixedly connected to the pressure plate and the protrusion, respectively.

[0014] As a further preferred embodiment of this utility model, the support platform is fixed to both sides of the top of the vehicle frame, and is located below the material discharge channel in the upper region of the screen tray and below the material discharge channel in the lower region of the screen tray, respectively.

[0015] As a further preferred embodiment of the present invention, the bottom of the frame is provided with wheels, the outer side of the support column is provided with a handrail, and the outer side of the support column and located in the middle of the handrail is provided with a control panel.

[0016] Compared with the prior art, the advantages and positive effects of this utility model include: 1) This utility model provides a pharmaceutical powder sieving structure. By adopting a double fixing structure for the fastening components, the sieve disc is first fixed by the pressure plate and fastening bolts. Then, the pressure plate is pressed again by the rotating frame, screw and pressure plate to ensure that the sieve disc remains stable under high-intensity vibration environment, avoids displacement and loosening, and ensures sieving accuracy.

[0017] 2) This utility model provides a pharmaceutical powder sieving structure. By setting an auxiliary bagging component, the pressure plate is automatically pressed to tighten the bag opening by rotating the elastic element, eliminating the need for manual hand-holding and fixing. With the help of adjusting the position of the threaded rod and adjusting the nut ring, the bag opening can be accurately aligned with the feeding channel, completely avoiding powder spillage and waste, simplifying the bagging process and reducing labor intensity.

[0018] 3) This utility model provides a pharmaceutical powder sieving structure. Through the cooperation of the elastic component and the vibration motor, the sieve disc is provided with stable high-frequency vibration to ensure the sieving effect. At the same time, the lifting elastic component can play a good buffering role, reduce the impact of vibration on the frame, mounting cylinder and other basic components, reduce equipment wear and extend the overall service life.

[0019] 4) This utility model provides a pharmaceutical powder sieving structure. The cleaning component in the auxiliary component rotates synchronously under the drive of the motor. Its brush can thoroughly clean the upper and lower surfaces of the screen and the inside of the screen plate, solving the screen clogging problem from the root and accelerating the powder sieving speed. In addition, the electric push rod can flexibly adjust the height of the cleaning component to adapt to the sieving needs of different powder loading, further improving the sieving efficiency.

[0020] 5) This utility model provides a pharmaceutical powder sieving structure. The sieve disc is divided into upper and lower independent areas by the sieve mesh and corresponding feeding channels, which can realize the synchronous classification and collection of coarse and fine powders without the need for additional sorting steps, thus further optimizing the production process.

[0021] 6) This utility model provides a pharmaceutical powder sieving structure. The combination design of wheels and handrails allows the equipment to move flexibly and easily adapt to different working scenarios. The control panel realizes centralized control of electronic components such as vibration motor, motor, and electric push rod. The operation is convenient and intuitive, reducing the difficulty of operation and improving the overall work efficiency.

[0022] 7) This utility model provides a pharmaceutical powder sieving structure with a compact structure, reasonable design, and coordinated operation of all components. It takes into account the high efficiency, stability, accuracy and ease of operation of sieving, and can fully meet the strict requirements of the pharmaceutical industry for pharmaceutical powder sieving, and has broad application prospects. Attached Figure Description

[0023] Figure 1 This utility model provides a three-dimensional structural diagram of a pharmaceutical powder sieving structure; Figure 2 This utility model provides a three-dimensional structural diagram of a pharmaceutical powder sieving structure from another angle. Figure 3 This utility model proposes a pharmaceutical powder sieving structure. Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model proposes a pharmaceutical powder sieving structure. Figure 1 Enlarged view of section B in the middle.

[0024] Legend: 1. Frame; 2. Mounting cylinder; 3. Vibration motor; 4. Elastic component; 5. Support platform; 6. Fastening component; 61. Assembly block; 62. Pressure plate; 63. Fastening bolt; 64. Fastening nut; 65. Rotating frame; 66. Screw; 67. Pressure plate; 7. Screen plate; 71. Discharge channel; 8. Support column; 9. Electric push rod; 10. Support plate; 11. Motor; 12. Cleaning component; 13. Auxiliary bagging component; 131. Support platform; 132. Threaded rod; 133. Guide rod; 134. Nut ring; 135. Shaft; 136. Rotating elastic component; 137. Pressure plate; 14. Wheel; 15. Control panel; 16. Handrail. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] [First Embodiment] like Figure 1-4 The diagram shows a pharmaceutical powder sieving structure according to the first embodiment of this utility model, including a frame 1. The frame 1 serves as the core supporting foundation of the entire pharmaceutical powder sieving structure, providing a stable mounting carrier for each functional component. A mounting cylinder 2 is provided on the top of the frame 1, and the mounting cylinder 2 is fixedly mounted to the center of the top of the frame 1 by bolts. A vibration motor 3 is fixed inside the mounting cylinder 2, and a mounting chamber adapted to the vibration motor 3 is reserved inside the mounting cylinder 2. The vibration motor 3 is securely mounted in this chamber by fastening bolts, with its output end facing upwards, ensuring that the vibration energy generated during operation can be efficiently and stably transmitted to the associated components above.

[0029] A support platform 5 is mounted on the top of the mounting cylinder 2 via an elastic assembly 4. In this embodiment, the elastic assembly 4 includes a sleeve, a sliding rod, and a lifting elastic element. Several sleeves are fixed to the top of the mounting cylinder 2, and several sleeves are evenly distributed circumferentially on the top of the mounting cylinder 2. These sleeves are key components of the elastic assembly 4. The inner wall of each sleeve is smoothed so that the sliding rod can slide smoothly inside the sleeve. A sliding rod is slidably arranged inside each sleeve. The end of the sliding rod away from the sleeve is fixedly connected to the bottom of the support platform 5 by welding. The lifting elastic element is sleeved on the outer periphery of the sleeve and the sliding rod, and its two ends are fixedly connected to the mounting cylinder 2 and the support platform 5 by welding, respectively. With the help of the elastic deformation characteristics of the lifting elastic element, it can provide an effective buffer for the support platform 5 during the screening process, and at the same time assist the support platform 5 to quickly reset after vibration.

[0030] The output end of the vibration motor 3 is fixedly connected to the support platform 5. The top of the support platform 5 is equipped with a screen plate 7 through a fastening assembly 6. In this embodiment, the fastening assembly 6 includes assembly blocks 61 symmetrically fixed to the outer edge of the support platform 5. The number of assembly blocks 61 matches the number of fastening assembly 6 groups. The top of each assembly block 61 is rotatably connected to a pressure plate 62 through a horizontally set shaft. The pressure plate 62 can rotate flexibly around the shaft in the vertical direction. A through hole adapted to fastening bolts 63 is opened in the center of the pressure plate 62. After the fastening bolts 63 pass through the through hole, they can accurately fit with the threaded holes preset on the edge of the screen plate 7.

[0031] Based on this, the top of the assembly block 61 is also rotatably connected to a rotating frame 65 via another horizontal shaft. The horizontal section of the rotating frame 65 has an internal threaded hole, and the screw 66 is threaded into the internal threaded hole. The lower outer edge of the screw 66 is fixedly connected to a pressure plate 67 by welding. The pressure plate 67 is made of wear-resistant rubber material to avoid damaging the pressure plate 62 during the pressing process. The screen plate 7 is placed stably above the support platform 5, and the edge of the screen plate 7 is aligned with the edge of the support platform 5.

[0032] Rotate the pressure plate 62 so that it rotates around the shaft to directly above the edge of the screen plate 7. At this time, pass the fastening bolt 63 through the through hole of the pressure plate 62 and slowly screw it into the threaded hole on the edge of the screen plate 7. Then, put the fastening nut 64 on the upper end of the fastening bolt 63 and tighten it clockwise to achieve the initial fixation of the screen plate 7. Then rotate the rotating frame 65 so that it rotates around the shaft to directly above the pressure plate 62. Rotate the screw 66 clockwise. Under the action of the threaded transmission, the screw 66 drives the pressure plate 67 to move downward until the pressure plate 67 is tightly attached to the upper surface of the pressure plate 62. This effectively prevents the pressure plate 62 from loosening or falling off the edge of the screen plate 7 during the vibrating screening process, and completes the re-fixation of the screen plate 7 to ensure that the screen plate 7 remains stable throughout the screening process.

[0033] In this embodiment, the sieve disc 7 is a hollow cavity structure with an open top. A high-precision sieve is horizontally arranged inside it. The sieve is fixed to the inner wall of the sieve disc 7 with bolts. The sieve divides the sieve disc 7 into two independent areas, the upper area and the lower area. The upper area is the area to be sieved, which is specifically used to place the drug powder to be processed. The lower area is the receiving area for the fine powder after sieving. Both the upper and lower areas of the sieve disc 7 are provided with staggered feeding channels 71. The feeding channels 71 are welded and fixed to the outer wall of the sieve disc 7 at the positions corresponding to the upper and lower areas. The feeding channels 71 are connected to the internal space of the sieve disc 7 and are inclined downwards to guide the powder to be discharged smoothly, which is convenient for subsequent bagging operations.

[0034] The top of the frame 1 is also equipped with auxiliary components for assisting the sieve disc 7 in screening drug powder and auxiliary bagging components 13 for assisting the loading bag in loading drug powder.

[0035] The auxiliary components in this embodiment include a support column 8 fixedly installed on the top of the frame 1. The support column 8 has a groove that is slidably connected to the support plate 10. Both ends of the support plate 10 are respectively embedded in the groove inside the support column 8. The support plate 10 can smoothly slide up and down along the length of the groove. An electric push rod 9 is fixedly installed on the top of the support column 8 by bolts. The output end of the electric push rod 9 is set vertically downward and fixedly connected to the support plate 10. The extension and retraction movement of the output end of the electric push rod 9 can accurately drive the support plate 10 to move up and down in the groove. A motor 11 is installed on the support plate 10 by bolts. The output shaft of the motor 11 is set vertically downward and fixedly connected to the rotating rod of the cleaning component 12. The cleaning component 12 extends into the sieve plate 7 to clean the medicine powder inside the sieve plate 7 and accelerate the sieving.

[0036] In this embodiment, the cleaning component 12 includes a rotating rod fixedly connected to the output shaft of the motor 11. The rotating rod extends vertically downward through the screen inside the sieve disk 7. A sealing sleeve is provided at the connection between the rotating rod and the screen to prevent the medicine powder from leaking out from the gaps. Several cleaning rods are fixedly connected to the rotating rod at the top of the screen and at the outer circumference of the bottom wall of the sieve disk 7. The cleaning rods are set perpendicular to the rotating rod. Each cleaning rod is fixedly equipped with a brush at its end. The brush is made of soft and wear-resistant nylon material. The bristles of the brush are closely attached to the inner wall of the sieve disk 7, the upper surface and the lower surface of the screen, which can efficiently clean the medicine powder attached to these parts without damaging the screen and the inner wall of the sieve disk 7.

[0037] The auxiliary bagging assembly 13 in this embodiment includes a support platform 131 fixed to the top of the frame 1 and located below the unloading channel 71. The support platform 131 has a horizontally arranged plate-like structure. A threaded rod 132 and a guide rod 133 are fixed to the outer edge of the support platform 131. The threaded rod 132 and the guide rod 133 are parallel to each other and vertically arranged. A nut ring 134 is threaded to the outer circumference of the threaded rod 132. The guide rod 133 passes through the inside of the nut ring 134. A smooth through hole is opened on the side wall of the nut ring 134. The guide rod 133 passes through the through hole and slides with the inner wall of the through hole. The nut ring 134 is reliably limited and guided, preventing it from rotating with the threaded rod 132. A protrusion is fixed on the outer side of the nut ring 134. A pressure plate 137 is rotatably connected to the outer side of the nut ring 134 via a shaft 135. One end of the pressure plate 137 is a pressing end, and the other end is a fitting end. A rotating elastic element 136 is sleeved on the outer side of the shaft 135, with both ends fixedly connected to the pressure plate 137 and the protrusion, respectively. In its natural state, the elastic force of the rotating elastic element 136 will cause the fitting end of the pressure plate 137 to fit tightly against the outer wall of the nut ring 134.

[0038] The support platform 131 is fixed to the top of the frame 1 on both sides, and is located below the material discharge channel 71 in the upper region of the sieve tray 7 and the material discharge channel 71 in the lower region of the sieve tray 7, respectively, to receive the medicine powder flowing out from the upper and lower regions inside the sieve tray 7.

[0039] In addition, wheels 14 are provided at the bottom of the frame 1. The wheels 14 adopt a universal wheel structure, which facilitates the flexible movement of the entire device between different working positions. A handrail 16 is provided on the outside of the support column 8. The handrail 16 has an arc-shaped structure, which makes it easy for the operator to hold and accurately control the direction of movement of the device. A control panel 15 is provided on the outside of the support column 8 and in the middle of the handrail 16. The control panel 15 is provided with multiple function control buttons, which correspond to the start and stop of the vibration motor 3, the electric push rod 9 and the motor 11, as well as the running speed. The control panel 15 is electrically connected to these electronic components through wires to ensure stable transmission of control signals.

[0040] The specific working process of this embodiment is as follows: Before use, hold the handle 16 and use the wheels 14 to move the entire device to a suitable working position to ensure that the device is placed stably.

[0041] First, open the upper opening of the sieve plate 7, and slowly pour the powdered medicine to be sieved into the upper area of ​​the sieve plate 7. After pouring, ensure that the powder is evenly distributed.

[0042] Then, the screen plate 7 is fixed by fastening assembly 6. First, hold the free end of the pressure plate 62 and rotate the pressure plate 62 around the shaft on the assembly block 61 until it is directly above the edge of the screen plate 7. Pass the fastening bolt 63 through the through hole on the pressure plate 62, align it with the threaded hole on the edge of the screen plate 7 and slowly screw it in. Then, put the fastening nut 64 on the exposed end of the fastening bolt 63 and tighten it clockwise to complete the initial fixing of the screen plate 7. Next, hold the free end of the rotating frame 65 and rotate the rotating frame 65 around the other shaft on the assembly block 61 until its horizontal section is directly above the pressure plate 62. Rotate the screw 66 clockwise. Under the action of threaded transmission, the screw 66 drives the pressure plate 67 to move downward until the pressure plate 67 is tightly pressed against the upper surface of the pressure plate 62, thereby fixing the screen plate 7 again and preventing the screen plate 7 from shifting or shaking during the screening process.

[0043] Vibration motors 3 and 11 are started via the corresponding buttons on control panel 15. Vibration motor 3 generates high-frequency vibration, causing the support platform 5 and sieve disc 7 to vibrate up and down. Vibration energy is transmitted to elastic component 4 via mounting cylinder 2. The lifting elastic element of elastic component 4 undergoes elastic deformation under vibration. The powder in sieve disc 7 tumbles continuously under vibration. Fine powder smaller than the sieve mesh size passes through the sieve and falls into the lower area of ​​sieve disc 7, while coarse powder larger than the sieve mesh size remains in the upper area, achieving efficient separation of coarse and fine powders. Simultaneously, motor 11 drives the output shaft to rotate, transmitting power to the rotating rod. The rotating rod drives the cleaning rods and brushes on both sides to rotate synchronously. The upper brush cleans the coarse powder in the upper area of ​​sieve disc 7, preventing coarse powder accumulation on the sieve surface and affecting the passage of fine powder. The lower brush cleans the lower surface of the sieve and the lower area of ​​sieve disc 7, preventing fine powder from adhering to these areas and causing blockage, effectively accelerating sieving efficiency.

[0044] During the sieving process, if it is necessary to adjust the cleaning position to accommodate different amounts of powder, the electric push rod 9 can be controlled by the control panel 15. The electric push rod 9 extends and retracts, causing the bearing plate 10 to move up and down in the groove of the support column 8. The bearing plate 10 drives the motor 11 and the cleaning component 12 to move up and down synchronously, so that the brush can clean different height positions in the sieve plate 7, ensuring uniform sieving effect.

[0045] After screening, prepare two bags, corresponding to the two discharge channels 71 of the screen plate 7. Open the opening of one bag and place it on the nut ring 134 of the auxiliary bagging assembly 13. Hold the pressing end of the pressure plate 137 and rotate the pressure plate 137 around the shaft 135 to separate the contact end of the pressure plate 137 from the nut ring 134. Place the edge of the opened bag opening between the contact end of the pressure plate 137 and the nut ring 134. Release the pressure plate 137 and rotate the elastic element 136. Under the action of elastic restoring force, the pressure plate 137 will return to its original position, so that the contact end is tightly pressed against the edge of the bag opening, and the bag is firmly fixed on the nut ring 134 to prevent the bag from falling off. Fix the other bag on the corresponding nut ring 134 in the same way. Then, rotate one end of the threaded rod 132. The threaded rod 132 rotates smoothly to the required height position. Then, under the limiting action of the guide rod 133, the nut ring 134 slides along the threaded rod 132, driving the fitted bag to move precisely to the bottom of the feeding channel 71, ensuring that the powder can fall accurately into the bag.

[0046] Finally, open the feeding channels 71 of the upper and lower areas of the sieve disc 7 respectively. The coarse powder in the upper area falls into the bag below through the corresponding feeding channel 71, and the fine powder in the lower area falls into the corresponding bag through another feeding channel 71, completing the bagging process. After bagging, remove the bag filled with powder and seal it. Then, turn off all electronic components through the control panel 15, loosen the screw 66 and fastening bolt 63 of the fastening assembly 6, remove the sieve disc 7, and thoroughly clean the sieve disc 7, screen, and cleaning component 12 to remove residual powder for stable use next time.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pharmaceutical powder sieving structure comprising a frame (1), characterized in that: The top of the frame (1) is provided with an installation cylinder (2), and a vibration motor (3) is fixed inside the installation cylinder (2). A support platform (5) is installed on the top of the installation cylinder (2) through an elastic component (4). The output end of the vibration motor (3) is fixedly connected to the support platform (5). A sieve disc (7) is installed on the top of the support platform (5) through a fastening component (6). The top of the frame (1) is also provided with auxiliary parts for assisting the sieve disc (7) in screening drug powder and auxiliary bagging components (13) for assisting the loading bag in loading drug powder.

2. The pharmaceutical powder sieving structure according to claim 1, characterized in that: The elastic component (4) includes a sleeve, a slide rod and a lifting elastic element. Several sleeves are fixed to the top of the mounting cylinder (2). A slide rod is slidably arranged inside each sleeve. The end of the slide rod away from the sleeve is fixedly connected to the bottom of the support platform (5). The lifting elastic element is sleeved on the outer periphery of the sleeve and the slide rod and its two ends are fixedly connected to the mounting cylinder (2) and the support platform (5) respectively.

3. The pharmaceutical powder sieving structure according to claim 2, characterized in that: The fastening assembly (6) includes an assembly block (61) fixed to the outer edge of the support platform (5), and a pressure plate (62) is rotatably connected to the top of the assembly block (61). A fastening bolt (63) is provided through the inside of the pressure plate (62).

4. The pharmaceutical powder sieving structure according to claim 3, characterized in that: The top of the assembly block (61) is also rotatably connected to a rotating frame (65), and a screw (66) is threadedly connected inside the rotating frame (65). A pressure plate (67) is fixedly connected to the outer edge of the screw (66).

5. The pharmaceutical powder sieving structure according to claim 4, characterized in that: The screen (7) is equipped with a screen mesh, which divides the screen (7) into upper and lower areas. Both upper and lower areas of the screen (7) are equipped with staggered feeding channels (71).

6. The pharmaceutical powder sieving structure according to claim 5, characterized in that: The auxiliary component includes a support column (8) installed on the top of the frame (1). The support column (8) has a groove that is slidably connected to the bearing plate (10). An electric push rod (9) is installed on the support column (8). The output end of the electric push rod (9) is fixedly connected to the bearing plate (10). A motor (11) is installed on the bearing plate (10). The output shaft of the motor (11) is fixedly connected to a cleaning component (12). The cleaning component (12) extends into the sieve disc (7) to clean the medicine powder inside the sieve disc (7) and speed up the sieving.

7. The pharmaceutical powder sieving structure according to claim 6, characterized in that: The cleaning component (12) includes a rotating rod fixedly connected to the output shaft of the motor (11). The rotating rod passes through the screen inside the screen plate (7). Several cleaning rods are fixedly connected to the rotating rod at the top of the screen and at the outer edge of the bottom wall of the screen plate (7). A brush is installed on the cleaning rod.

8. The pharmaceutical powder sieving structure according to claim 7, characterized in that: The auxiliary bagging assembly (13) includes a support platform (131) fixed to the top of the frame (1) and located below the unloading channel (71). A threaded rod (132) and a guide rod (133) are fixed to the outer edge of the support platform (131). A nut ring (134) is threaded to the outer circumference of the threaded rod (132). The guide rod (133) is inserted through the nut ring (134). A protrusion is fixed to the outer side of the nut ring (134). A pressure plate (137) is rotatably connected to the outer side of the nut ring (134) through a shaft (135). A rotating elastic element (136) is sleeved on the outer side of the shaft (135) with both ends fixedly connected to the pressure plate (137) and the protrusion, respectively.

9. A pharmaceutical powder sieving structure according to claim 8, characterized in that: The support platform (131) is fixed to the top two sides of the frame (1), and is located below the material discharge channel (71) in the upper region of the screen plate (7) and below the material discharge channel (71) in the lower region of the screen plate (7), respectively.

10. A pharmaceutical powder sieving structure according to claim 9, characterized in that: The bottom of the frame (1) is provided with wheels (14), the outside of the support column (8) is provided with a handrail (16), and the outside of the support column (8) and in the middle of the handrail (16) is provided with a control panel (15).

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