A feeding and conveying system for pharmaceutical intermediates

Abstract

The present invention discloses a feeding and conveying system for pharmaceutical intermediates, and relates to the field of pharmaceutical preparation equipment. The feeding and conveying system for pharmaceutical intermediates comprises a conveying pipeline and a pneumatic pump. A corrugated pipe is connected to the side of the feeding end of the conveying pipeline, and a sedimentation bin is connected to the other end of the conveying pipeline. A metering tray is arranged in the sedimentation bin. The pneumatic conveying equipment is designed to provide a light-proof and sealed conveying environment for pharmaceutical intermediates, and at the same time, the temperature and humidity of the materials are conveniently controlled in the conveying pipeline. In addition, a corrugated pipe is arranged on the side of the feeding end of the conveying pipeline to facilitate the conveying operation of various small-dose ingredients. The materials sucked into the conveying pipeline are settled in the sedimentation bin, and the addition amount of the materials is controlled by the metering tray, so as to realize the precise control of the added materials. In addition, the equipment is convenient for the precise addition of various materials in sequence in the use of pharmaceutical preparation with various ingredients, and is widely applicable to the contactless conveying of aqueous preparations, powders and pharmaceutical intermediates with smaller particles.

Description

Technical Field

[0001] The invention relates to a conveying system, in particular to a pharmaceutical intermediate feeding and conveying system. Background Art

[0002] Patent Publication No. (CN214140283U) discloses a solid material feeding device for pharmaceutical intermediate system, including a table, a reaction pool is installed on the top of one side of the table, a guide plate is inclined inside the reaction pool, and the guide plate extends to the bottom of the reaction pool; a material pool is installed on the top of the table away from the reaction pool, a first bracket is connected to the top of the table between the reaction pool and the material pool, and a second bracket is installed on the top wall of the material pool close to the first bracket; a base is installed on the top of the table between the reaction pool and the first bracket, a second motor is connected to the top of the base through a second motor base, and two fourth brackets are inclined on the top of the base on both sides of the second motor. This makes the solid material feeding device for pharmaceutical intermediate system easy to operate, saves time and effort, saves labor costs, and can effectively prevent the reaction pool from being agitated during feeding, avoid chemical substances from splashing and falling, reduce resource waste, and reduce economic losses.

[0003] The above equipment can directly deliver a large amount of materials to the working height without causing splashing of raw materials through the conveying method of spiral combined with conveyor belt. However, the precision of this equipment is very low. In pharmaceutical production, there are not only a variety of small-ratio raw materials to be added, but also the need to ensure the ratio accuracy of raw materials and the appropriate conveying environment for different materials. A single conveying method cannot meet the use needs.

[0004] To this end, those skilled in the art have proposed a pharmaceutical intermediate feeding and conveying system to improve the material conveying accuracy, and to be applicable to the use needs of a variety of different material conveying environments, thereby ensuring the safe conveying of different types of pharmaceutical intermediates. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a pharmaceutical intermediate feeding and conveying system, which designs a device that sucks materials into a conveying pipeline through a pneumatic pump and then accurately controls the feeding and conveying of materials through a metering tray. It can realize the light-proof and sealed conveying of small-dose aqueous preparations, powders and small-particle pharmaceutical intermediates, and more accurately control the contactless feeding operation. It can carry out the feeding and conveying of multiple materials in succession, avoiding the problem that equipment with a single conveying mode cannot meet the requirements of multi-ingredient pharmaceutical production.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pharmaceutical intermediate feeding and conveying system, including a conveying pipeline and a pneumatic pump, wherein the conveying pipeline provides a clean, contactless, sealed conveying environment, and the pneumatic pump provides the material conveying power. The pneumatic pump is used to suck aqueous preparations, powders, and smaller particles of pharmaceutical intermediates into the pipeline for sealed conveying, and the pharmaceutical intermediates can be protected from light, kept warm and moisturized, and conveyed contactlessly.

[0007] A bellows is connected through the side of the feed end of the conveying pipeline, and the material is sucked in by the expansion and contraction of the bellows. The bellows is connected to the side of the feed end of the conveying pipeline. Larger doses of material are directly pneumatically conveyed through the conveying pipeline, and a variety of smaller doses of pharmaceutical intermediates are inhaled by controlling the expansion and contraction of the bellows, which is flexible and convenient to use.

[0008] The conveying pipeline is connected to a sedimentation bin at one end away from the corrugated pipe. The material sucked into the conveying pipeline by the pneumatic pump is decelerated and settled in the sedimentation bin. The diameter of the sedimentation bin is larger than the conveying pipeline. Therefore, the material will be decelerated after entering the sedimentation bin. The material in the decelerated airflow will settle under the action of gravity. The conveying of materials of different masses is controlled based on this principle.

[0009] A metering tray is provided at the inner bottom of the sedimentation bin, and the metering tray performs precise metering control on the output material. The material conveyed by the pneumatic conveyor is weighed by the metering tray before adding, so that the adding amount of each pharmaceutical intermediate can be accurately controlled.

[0010] Preferably, the end of the corrugated tube is fixedly connected with a hand-held portion, which is convenient for hand-held operation and can also be replaced by a connecting structure to be directly connected to a storage container.

[0011] An adjustment plate is provided on the inner side of the hand-held part to slide against the side wall of the bellows. The adjustment plate adjusts the distance between the adjustment plate and the inner wall of the hand-held part to control the opening of the feed end of the bellows. Different openings of the feed end of the bellows result in different airflow intensities at the feed end.

[0012] Preferably, a slider is fixedly connected to the side of the adjustment plate, and an adjustment groove is provided on the side wall of the hand-held part corresponding to the slider. The adjustment plate is slidably arranged on the inner side of the hand-held part through the slider, and the feed can be controlled by positioning and adjusting the adjustment plate when conveying materials with different volume-to-mass ratios.

[0013] The sliding block passes through the side of one end of the adjusting slide slot and is threadedly connected with an adjusting nut, and the adjusting nut is pressed against the side wall of the hand-held part to position the adjusting plate.

[0014] Preferably, a guide bar is fixedly connected to the side of the slider, and a resistance rubber pad is slidably sleeved on the side of the slider through the guide bar, so that the resistance rubber pad slides along the guide bar on the side of the slider to avoid angle changes during the movement of the resistance rubber pad that affect the limiting effect, and at the same time, the positioning of the adjustment plate is achieved by utilizing the friction between the resistance rubber pad and the side wall of the hand-held part.

[0015] A first spring is tightly arranged on the side of the slider and between the resistance rubber pad and the adjustment plate. Under the action of the first spring, after loosening the adjustment nut, the resistance rubber pad is lifted up by the first spring and separated from the tight friction between the resistance rubber pad and the side wall of the hand-held part, so as to facilitate the sliding adjustment of the adjustment plate.

[0016] Preferably, a sedimentation baffle is fixed on the inner wall of the sedimentation bin at an angle along the feeding direction, and an exhaust port is opened at the top of the sedimentation bin and behind the sedimentation baffle. The material conveyed with the airflow changes its movement direction or directly hits and falls under the action of the sedimentation baffle and will not be directly conveyed to the bottom of the exhaust port, thereby preventing the airflow from carrying the material directly outward through the exhaust port.

[0017] Dust bags are arranged in array at the exhaust port, and the dust of the material with smaller mass moves to the exhaust port together with the air flow, and is intercepted and filtered by the dust bags to avoid material loss and pollution.

[0018] Preferably, a baffle is rotatably provided inside the sedimentation bin and below the dust bag, and the baffle is fixedly connected to a periodic motor. Under the action of the periodic motor, the baffle moves periodically, periodically switching the covering of the exhaust port at the dust bag, thereby facilitating the cleaning of the dust bag.

[0019] A dust cleaning brush is fixed on the inner top wall of the sedimentation bin corresponding to the baffle. During the time when the baffle covers the dust bag, the dust in the dust bag falls onto the baffle, and the dust of the material is swept down the baffle for collection by the dust cleaning brush.

[0020] Preferably, the top of the dust bag is fixedly connected to a top plate, and a second spring is arranged between the top plate and the sedimentation bin. When the baffle blocks the dust bag, the dust bag loses the expansion effect of the airflow, and the elastic force of the second spring pushes the dust bag to bounce downward. In this process, the material dust in the dust bag is shaken off onto the baffle.

[0021] An inclined plate is fixed on the inner wall of the sedimentation bin corresponding to the cleaning brush, and the material dust swept by the cleaning brush slides to the bottom of the sedimentation bin through the shielding of the inclined plate, and will not be sucked into the dust bag again due to exposure near the exhaust port.

[0022] Preferably, a collecting bucket is fixed inside the sedimentation bin and above the metering tray. The collecting bucket ensures that the transported material is settled onto the metering tray, and it is not easy for material accumulation in the corner to affect the purity and accuracy of the added material. It is also beneficial to the sealing of the sedimentation bin.

[0023] The bottom side of the metering tray is tilted downward and fixedly connected with a discharge conduit, and the material on the metering tray is discharged outward through the discharge conduit. During the discharge process, the metering tray is used to conveniently control the added amount.

[0024] The bottom end of the discharge conduit is fixedly connected with a return pipe. After the material is added, the exhaust port of the sedimentation bin is closed, and the remaining material is returned to the material storage through the return pipe by airflow, so as to facilitate the continued addition and use of other materials.

[0025] Preferably, a gate plate is provided on the inner side of the metering tray corresponding to the discharge conduit, and the gate plate penetrates the side wall of the sedimentation bin and is slidably connected thereto. The discharge conduit is opened and closed by the gate plate to avoid incorrect component content caused by excessive addition of material.

[0026] The side wall of the metering tray is fixedly connected with a tightening spring sheet corresponding to the gate plate, and the gate plate is limited by the tightening spring sheet to avoid affecting the discharge control of the material.

[0027] Preferably, the discharge conduit passes through the side wall of the sedimentation bin and extends to the outside thereof, and an electronic weighing system is arranged under the metering tray, so as to facilitate the weighing of the material when the metering tray is allowed to move within a small range relative to the sedimentation bin.

[0028] A support block is fixedly connected to the side wall of the sedimentation bin corresponding to the return pipe, and the return pipe is limited by the support block when the return pipe is not in use.

[0029] The present invention discloses a pharmaceutical intermediate feeding and conveying system, which has the following beneficial effects:

[0030] 1. The pharmaceutical intermediate feeding and conveying system is designed with pneumatic conveying equipment to provide a light-proof and sealed conveying environment for pharmaceutical intermediates. At the same time, it is convenient to control the temperature and humidity of the materials in the conveying pipeline. In addition, a bellows is arranged on the side of the feeding end of the conveying pipeline to facilitate the conveying of various small-dose ingredients. The materials sucked into the conveying pipeline are settled in the sedimentation bin, and the amount of materials added is controlled by the metering tray to achieve precise control of the added materials. In addition, the equipment is convenient for the precise addition of various materials in sequence during the use of pharmaceutical preparations with various ingredients. It is widely suitable for the contactless delivery of aqueous preparations, powders and smaller particles of pharmaceutical intermediates.

[0031] 2. The feeding and conveying system for pharmaceutical intermediates has a bellows connected to the side of the feeding end of the conveying pipeline. The bellows is conveniently operated by a handheld device to facilitate the conveying of materials of different doses by the equipment. In addition, a sedimentation baffle is arranged on the inner side of the sedimentation bin. The material moving with the airflow is not easy to directly enter the dust bag through the shielding of the sedimentation baffle, thereby reducing the probability of the dust bag being blocked. In addition, a structure is provided to facilitate the periodic cleaning of multiple dust bags, so that the equipment can run for a long time without much maintenance.

[0032] 3. In the pharmaceutical intermediate feeding and conveying system, a second spring is arranged on the top of the dust bag, and a periodically moving baffle is arranged under the dust bag. When the baffle blocks the bottom of the dust bag, the vibration of the second spring causes the dust in the dust bag to be shaken off onto the baffle, and then the dust is swept away by a fixed cleaning brush, and an inclined plate with a shielding effect is arranged corresponding to the cleaning brush, which is beneficial to the sedimentation of the material and prolongs the effective use time of the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of the sedimentation bin of the present invention;

[0036] Figure 3 This is a schematic diagram of the assembly of the handheld structure of the present invention;

[0037] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0038] Figure 5 This is a schematic diagram of the dust bag installation structure of the present invention;

[0039] Figure 6 This is a schematic diagram of the dust collection structure inside the sedimentation bin of the present invention;

[0040] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0041] In the figure: 1. conveying pipeline; 2. pneumatic pump; 3. bellows; 4. sedimentation bin; 5. metering tray; 6. hand-held part; 7. adjustment plate; 8. slider; 9. adjustment slide; 10. tightening nut; 11. guide strip; 12. resistance rubber pad; 13. first spring; 14. sedimentation baffle; 15. dust bag; 16. baffle; 17. cleaning brush; 18. top plate; 19. second spring; 20. inclined plate; 21. collecting bucket; 22. discharge conduit; 23. return pipe; 24. gate; 25. tightening spring; 26. support block. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The embodiment of the present invention discloses a pharmaceutical intermediate feeding and conveying system;

[0044] According to the attached Figure 1 As shown, it includes a conveying pipeline 1 and a pneumatic pump 2. The conveying pipeline 1 provides a clean, contactless, sealed conveying environment, and the pneumatic pump 2 provides the conveying power of the material. The pneumatic pump 2 forms an airflow in the conveying pipeline 1, and can perform contactless conveying operations on aqueous solutions, powders, and even smaller particles of pharmaceutical intermediates.

[0045] A bellows 3 is connected to the side of the feed end of the conveying pipeline 1. The bellows 3 is extended and contracted to approach and inhale the material. Large doses of material are directly sucked through the conveying pipeline 1, and other small doses of material are sucked through the bellows 3 by extension and contraction, which makes the operation more flexible and convenient.

[0046] The end of the conveying pipeline 1 away from the corrugated pipe 3 is connected to the sedimentation bin 4. The material in the conveying pipeline 1 enters the sedimentation bin 4. As the inner diameter increases, the air flow velocity decreases, causing the material to settle in the sedimentation bin 4, thereby achieving contactless conveying of the material. The conveying pipeline 1 is used for pneumatic conveying of pharmaceutical intermediates, which facilitates the control of temperature and humidity of special materials and has the function of shielding from light.

[0047] According to the attached Figure 2 As shown, a metering tray 5 is provided at the inner bottom of the sedimentation bin 4, and the metering tray 5 performs precise metering control on the output material, so that the metering control on various formulas in pharmaceutical production is more accurate.

[0048] The end of the bellows 3 is fixedly connected with a handheld part 6, which is used to conveniently operate the bellows 3 to transport various materials. The handheld part 6 can also have a connecting function, and the handheld part 6 is connected to a material storage device to directly transport the material.

[0049] The inner wall of the sedimentation bin 4 is fixed with a sedimentation baffle 14 which is inclined along the feeding direction. An exhaust port is opened at the top of the sedimentation bin 4 and behind the sedimentation baffle 14. The material entering the sedimentation bin 4 with the air flow settles under the action of the sedimentation baffle 14, while preventing the material from being directly transported to the bottom of the exhaust port and being easily discharged directly from the sedimentation bin 4.

[0050] Dust bags 15 are arranged in array at the exhaust port. A small amount of material dust enters the dust bags 15 along with the airflow. The material is filtered by the dust bags 15 to avoid pollution caused by industrial dust leakage, and also save production resources.

[0051] According to the attached Figure 3 As shown, an adjustment plate 7 is slidably arranged on the inner side of the hand-held portion 6 against the side wall of the bellows 3. The adjustment plate 7 adjusts the distance between the adjustment plate 7 and the inner wall of the hand-held portion 6 to control the opening of the feeding end of the bellows 3. Different openings of the adjustment plate 7 can control the conveying power of the bellows 3 for the material.

[0052] A slider 8 is fixedly connected to the side of the adjustment plate 7, and an adjustment slot 9 is provided on the side wall of the hand-held portion 6 corresponding to the slider 8. The adjustment plate 7 is slidably arranged on the inner side of the hand-held portion 6 through the slider 8. The slider 8 passes through the side of one end of the adjustment slot 9 and is threadedly connected with a tightening nut 10. The adjustment plate 7 can adjust any opening of the feed end through the slider 8 and the tightening nut 10.

[0053] According to the attached Figure 4 As shown, a guide bar 11 is fixedly connected to the side of the slider 8, and a resistance rubber pad 12 is slidably sleeved on the side of the slider 8 through the guide bar 11. The resistance rubber pad 12 moves along the direction of the slider 8 under the action of the guide bar 11, and at the same time, the friction between the resistance rubber pad 12 and the side wall of the hand-held part 6 can be increased to prevent the adjustment plate 7 used for positioning from sliding during use.

[0054] A first spring 13 is tightly arranged on the side of the slider 8 and between the resistance rubber pad 12 and the adjustment plate 7. Under the action of the first spring 13, the adjusting nut 10 is loosened, and the first spring 13 automatically lifts the resistance rubber pad 12 away from the hand-held part 6, making it convenient to adjust the height of the adjustment plate 7.

[0055] According to the attached Figure 5As shown, a baffle 16 is rotatably provided inside the sedimentation bin 4 and below the dust bags 15. The baffle 16 is fixedly connected to a periodic motor. Under the driving action of the periodic motor, the baffle 16 periodically blocks the multiple dust bags 15. The dust bags 15 blocked by the baffle 16 no longer enter the air, making it convenient to clean the dust in the dust bags 15.

[0056] A cleaning brush 17 is fixed to the inner top wall of the sedimentation bin 4 corresponding to the baffle 16. As the baffle 16 continues to rotate, the cleaning brush 17 sweeps the dust on the upper surface of the baffle 16 to prevent the material dust from being carried into the dust removal bag 15 by the airflow again.

[0057] According to the attached Figure 6 and attached Figure 7 As shown, the top of the dust bag 15 is fixedly connected to a top plate 18, and a second spring 19 is arranged between the top plate 18 and the sedimentation bin 4. When the baffle 16 moves to the bottom of the dust bag 15 to form a cover, the elastic force of the second spring 19 acts on the top plate 18 at the top of the dust bag 15, driving the dust bag 15 to move downward, and under the vibration of the second spring 19, the dust is shaken off onto the baffle 16.

[0058] An inclined plate 20 is fixed on the inner wall of the sedimentation bin 4 in an inclined manner corresponding to the cleaning brush 17. The dust swept by the cleaning brush 17 is easily affected by the airflow during the falling process and enters the dust removal bag 15 again. Therefore, an inclined plate 20 with a shielding function is arranged in conjunction with the position of the cleaning brush 17, and the swept dust can fall smoothly for a certain distance under the shielding effect of the inclined plate 20.

[0059] A collecting bucket 21 is fixed inside the sedimentation bin 4 and above the metering tray 5 . The collected bucket 21 allows the settled materials to enter the metering tray 5 , which is also beneficial to the sealing of the sedimentation bin 4 .

[0060] The bottom side of the metering tray 5 is tilted downward and fixedly connected with a discharge conduit 22, and the bottom end of the discharge conduit 22 is fixedly connected with a return pipe 23. The addition of materials is accurately controlled by cooperating with the metering tray 5 through the discharge conduit 22, and the remaining materials are refluxed through the return pipe 23 in cooperation with the airflow in the sedimentation bin 4, which facilitates the equipment to transport a variety of different materials in sequence.

[0061] A gate plate 24 is inserted and provided on the inner side of the metering tray 5 corresponding to the discharge conduit 22 . The gate plate 24 penetrates the side wall of the sedimentation bin 4 and is slidably connected thereto. The discharge conduit 22 is controlled to be on and off by the gate plate 24 .

[0062] The side wall of the metering tray 5 is fixedly connected with a tightening spring piece 25 corresponding to the gate plate 24. The tightening spring piece 25 applies a tightening force to the gate plate 24 to stabilize the gate plate 24 at the set position to prevent affecting the accurate transportation of materials.

[0063] The discharge conduit 22 passes through the side wall of the sedimentation bin 4 and extends to its outside. The side wall of the sedimentation bin 4 is fixedly connected with a support block 26 corresponding to the return pipe 23. When the return pipe 23 is not in use, it is placed by the support block 26 to prevent the return pipe 23 from being contaminated.

[0064] The pharmaceutical intermediate feeding and conveying system is designed with pneumatic conveying equipment to provide a light-proof and sealed conveying environment for the pharmaceutical intermediates, and at the same time, the temperature and humidity of the material are conveniently controlled in the conveying pipeline 1. In addition, a bellows 3 is arranged on the side of the feeding end of the conveying pipeline 1 to facilitate the conveying operation of various small-dose ingredients. The material sucked into the conveying pipeline 1 is settled in the sedimentation bin 4, and the addition amount of the material is controlled by the metering tray 5, so as to realize the precise control of the added material. In addition, the equipment is convenient for the precise addition of various materials in sequence during the use of pharmaceutical preparation with various ingredients, and is widely applicable to the contactless conveying of aqueous preparations, powders and relatively small-particle pharmaceutical intermediates.

[0065] Furthermore, the side of the feed end of the conveying pipeline 1 is connected to the bellows 3, and the bellows 3 is conveniently operated by the handheld part 6 to facilitate the equipment to convey materials of different doses. In addition, a sedimentation baffle 14 is arranged on the inner side of the sedimentation bin 4. The material moving with the airflow is not easy to directly enter the dust bag 15 through the shielding of the sedimentation baffle 14, thereby reducing the probability of the dust bag 15 being blocked, and a structure is provided for facilitating the periodic cleaning of multiple dust bags 15, so that the equipment can operate for a long time without much maintenance.

[0066] Furthermore, a second spring 19 is arranged on the top of the dust bag 15, and a periodically moving baffle 16 is arranged under the dust bag 15. When the baffle 16 forms a shield under the dust bag 15, the vibration of the second spring 19 causes the dust in the dust bag 15 to be shaken off onto the baffle 16, and then the dust is swept away by a fixed cleaning brush 17, and an inclined plate 20 with a shielding function is arranged corresponding to the cleaning brush 17, which is beneficial to the sedimentation of the material and prolongs the effective use time of the dust bag 15.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pharmaceutical intermediate feeding and conveying system, comprising a conveying pipeline (1) and a pneumatic pump (2), wherein the conveying pipeline (1) provides a clean, contactless, sealed conveying environment, and the pneumatic pump (2) provides a material conveying power, characterized in that: A bellows (3) is connected through the side of the feed end of the conveying pipeline (1), and the bellows (3) is extended and contracted to suck materials closer. The end of the conveying pipeline (1) away from the bellows (3) is connected to a sedimentation bin (4). The materials sucked into the conveying pipeline (1) by the pneumatic pump (2) are decelerated and sedimented in the sedimentation bin (4). A metering tray (5) is provided at the inner bottom of the sedimentation bin (4), and the metering tray (5) performs precise metering control on the output materials. A sedimentation baffle (14) is fixedly provided on the inner wall of the sedimentation bin (4) at an angle along the feeding direction, an exhaust port is provided at the top of the sedimentation bin (4) and at the rear side of the sedimentation baffle (14), and dust removal bags (15) are arranged in an array at the exhaust port; A baffle (16) is rotatably provided inside the sedimentation bin (4) and below the dust removal bag (15); the baffle (16) is fixedly connected to a periodic motor; and a dust cleaning brush (17) is fixedly provided on the inner top wall of the sedimentation bin (4) corresponding to the baffle (16); The top of the dust removal bag (15) is fixedly connected to a top plate (18), a second spring (19) is provided between the top plate (18) and the sedimentation bin (4), and an inclined plate (20) is fixedly provided on the inner wall of the sedimentation bin (4) in an inclined manner corresponding to the dust cleaning brush (17).

2. The pharmaceutical intermediate feeding and conveying system according to claim 1, characterized in that: The end of the bellows (3) is fixedly connected to a hand-held portion (6), and an adjustment plate (7) is slidably provided on the inner side of the hand-held portion (6) against the side wall of the bellows (3), and the adjustment plate (7) adjusts the distance between the adjustment plate (7) and the inner wall of the hand-held portion (6) to control the opening of the feeding end of the bellows (3).

3. The pharmaceutical intermediate feeding and conveying system according to claim 2, characterized in that: A slider (8) is fixedly connected to the side of the adjustment plate (7); an adjustment slot (9) is provided on the side wall of the hand-held portion (6) corresponding to the slider (8); the adjustment plate (7) is slidably arranged inside the hand-held portion (6) through the slider (8); and a locking nut (10) is threadedly connected to the side of the slider (8) that passes through one end of the adjustment slot (9).

4. The pharmaceutical intermediate feeding and conveying system according to claim 3, characterized in that: A guide bar (11) is fixedly connected to the side of the slider (8), a resistance rubber pad (12) is slidably sleeved on the side of the slider (8) via the guide bar (11), and a first spring (13) is tightly arranged on the side of the slider (8) and between the resistance rubber pad (12) and the adjustment plate (7).

5. The pharmaceutical intermediate feeding and conveying system according to claim 1, characterized in that: A collecting bucket (21) is fixed inside the sedimentation bin (4) and above the metering tray (5); a discharge conduit (22) is fixedly connected to the bottom side of the metering tray (5) in a downwardly inclined manner; and a return pipe (23) is fixedly connected to the bottom end of the discharge conduit (22).

6. The pharmaceutical intermediate feeding and conveying system according to claim 5, characterized in that: A gate plate (24) is inserted and provided on the inner side of the metering tray (5) corresponding to the discharge conduit (22); the gate plate (24) penetrates the side wall of the sedimentation bin (4) and is slidably connected thereto; a tightening spring sheet (25) is fixedly connected to the side wall of the metering tray (5) corresponding to the gate plate (24).

7. The pharmaceutical intermediate feeding and conveying system according to claim 5, characterized in that: The discharge conduit (22) penetrates the side wall of the sedimentation bin (4) and extends to the outside thereof, and a support block (26) is fixedly connected to the side wall of the sedimentation bin (4) corresponding to the return pipe (23).

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