Vibrating screening equipment for medicine production

By designing vibrating screening equipment for drug production, automatic cleaning is achieved using cylinders and pull rods, combined with the unique baffle design, the problem of material accumulation and cleaning difficulties in existing equipment is solved, and production efficiency and equipment reliability are improved.

CN119702438AInactive Publication Date: 2025-03-28BEIJING WANHUI DOUBLE CRANE PHARMA
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202411991729.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

After the screening operation of existing vibrating screen equipment, materials that do not meet the particle size requirements are easily piled up and stuck on the screen plate, lacking a convenient and efficient automatic cleaning mechanism, resulting in manual cleaning, limited speed and difficult to ensure thoroughness, which affects the normal use of the equipment.

Method used

A vibrating screening equipment for drug production is designed, using cylinders and pull rods to realize the inclination of the hopper, material cleaning and reset. Combined with the unique baffle design and cleaning mechanism, it ensures that the material is completely shaken off and avoids residue.

Benefits of technology

Through the automated cleaning mechanism, manual intervention is reduced, labor intensity is reduced, production efficiency is improved, equipment stability and reliability is ensured, equipment service life is extended, and production costs are reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119702438A_ABST
    Figure CN119702438A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of vibration screening equipment, in particular to vibration screening equipment for medicine production, which comprises a machine body and a support frame, the machine body is positioned above the support frame, the upper surface of the support frame is fixedly connected with four symmetrically arranged stable springs, the upper ends of the stable springs are fixedly connected with the lower surface of the machine body, and the lower ends of the stable springs are fixedly connected with the lower surface of the machine body. A mounting sleeve is fixedly connected to the surface of the machine body, and a vibration motor is fixedly connected into the mounting sleeve. According to the invention, the convenience of operation is fully considered in the design of the equipment, an operator can easily operate in feeding, screening and cleaning links, for example, after material screening is completed, a series of operations such as inclination of the hopper, material cleaning and resetting can be rapidly completed by simply pulling the pull rod and controlling the air cylinder, and the working efficiency is greatly improved. Complex manual intervention is reduced, the labor intensity is reduced, the production efficiency is improved, the whole medicine screening process is smoother and more efficient, and the high-strength production requirement can be met.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of vibrating screening equipment, and in particular to a vibrating screening equipment used for drug production. Background Art

[0002] The vibrating screening equipment used in drug production is a key device that specifically serves the pharmaceutical process. It uses vibrations of specific frequency and amplitude to make the drug raw materials move in an orderly manner on the screen. It can accurately classify and screen the drug raw materials by particle size, remove impurities and unqualified large particles, and ensure that the quality of the raw materials entering the subsequent processes is uniform and pure. The equipment is mostly made of stainless steel that meets pharmaceutical standards. It is easy to clean and has no pollution risks. It plays an indispensable role in ensuring the quality and compliance of drug production.

[0003] Prior art includes an invention with publication number CN112774974A, which discloses an independent frequency-modulated vibrating screen, comprising a vibrating screen frame, on which a vibrating screen plate is arranged, and the vibrating screen plate utilizes a vibrating device II to vibrate and screen materials; the vibrating screen plate is provided with a plurality of independent vibrating screen plates, and the independent vibrating screen plates vibrate and screen materials through a vibrating device III; the independent vibrating screen plates are provided with a plurality of unit vibrating screen plates, and the unit vibrating screen plates drive the vibrating and screening materials through a vibrating device IV; the vibrating screen plates and the vibrating device II form a primary vibrating screening system, the independent vibrating screen plates and the vibrating device III form a secondary vibrating screening system, and the unit vibrating screen plates and the vibrating device IV form a tertiary vibrating screening system, which are combined to form an independent vibration system from the whole to the part; the problem of different local gravity caused by different particle sizes can be solved by enlarging the range of material movement and promoting the rapid passage of materials.

[0004] In the current drug production and many fields involving fine material processing, vibrating screen equipment plays a vital role in screening and control. However, most of the existing vibrating screen equipment has a rather thorny problem, which seriously restricts the improvement of production efficiency. After the screening operation is completed, those unqualified materials that do not meet the particle size requirements are often accumulated and retained on the screen plate. Due to the lack of a convenient and efficient automatic cleaning mechanism, the industry has long generally adopted manual removal to deal with these residual materials. On the one hand, the speed of manual operation is extremely limited. On the other hand, manual cleaning is difficult to ensure the thoroughness of cleaning, and material residues are prone to occur, affecting the normal use of the equipment. Improvements are needed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that after most vibrating screen equipment completes the screening operation, unqualified materials that do not meet the particle size requirements are often accumulated and retained on the screen plate. Due to the lack of a convenient and efficient automatic cleaning mechanism, the industry has long generally adopted a manual removal method to deal with these residual materials. On the one hand, the speed of manual operation is extremely limited. On the other hand, manual cleaning is difficult to ensure the thoroughness of cleaning, and material residues are likely to occur, affecting the normal use of the equipment. A vibrating screening equipment for drug production is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a vibrating screening device for drug production, comprising a body and a support frame, the body is located above the support frame, the upper surface of the support frame is fixedly connected with four symmetrically arranged stabilizing springs, the upper ends of the stabilizing springs are fixedly connected with the lower surface of the body, the surface of the body is fixedly connected with a mounting sleeve, a vibration motor is fixedly connected in the mounting sleeve, and also comprises a hopper, the hopper is located above the body, the surface of the hopper is fixedly connected with a stabilizing block, the surface of the body is fixedly connected with a protrusion, the stabilizing block rotates with the surface of the protrusion, the inner wall of the hopper is fixedly connected with a screen, and the material The inner wall of the bucket is rotatably connected to a baffle, the surface of the body is fixedly connected to a mounting seat, a cylinder is installed on the mounting seat, the surface of the hopper is fixedly connected to a positioning seat, and the output end of the cylinder is installed on the positioning seat. The design of the equipment fully considers the convenience of operation, whether it is loading, screening or cleaning, the operator can easily get started. For example, after the material screening is completed, a series of operations such as tilting the hopper, cleaning and resetting the material can be quickly completed by simply pulling the pull rod, operating the cylinder and other actions, reducing complex manual intervention, reducing labor intensity, and improving production efficiency, making the entire drug screening process smoother and more efficient, and can adapt to high-intensity production needs.

[0007] Preferably, the surface of the hopper is fixedly connected to a mounting block, the inner wall of the mounting block is slidably connected to a slider, the lower surface of the slider is fixedly connected to a tension spring, the tension spring is located in the mounting block, the lower end of the tension spring is fixedly connected to the inner bottom wall of the mounting block, the inner wall of the hopper is rotatably connected to a shaft rod, the shaft rod is fixedly connected to the axis of the baffle, the end of the shaft rod located outside the hopper is fixedly connected to a gear, the upper surface of the slider is fixedly connected to a transmission belt, the transmission belt is meshed with the gear, and the end of the transmission belt away from the slider is fixedly connected A pull belt is connected, and a through hole is opened at the end of the pull belt away from the transmission belt. A hook is fixedly connected to the surface of the cylinder, and the hook passes through the through hole. The unique baffle design and cleaning mechanism can effectively avoid material residue. In the cleaning stage, the vibration motor is turned on and the hopper is tilted. The baffle moves with the hopper, which can completely shake off the unfiltered large particles that may be attached or stuck in the hopper, preventing the material from accumulating on the hopper and the screen and clogging the screen holes, ensuring the stability and reliability of each screening operation, reducing the frequency of equipment maintenance, extending the service life of the equipment, and reducing production costs.

[0008] Preferably, the surface of the hopper is rotatably connected to a guide wheel, and one end of the pull belt is placed on the guide wheel to facilitate normal use of the equipment.

[0009] Preferably, the number of the cylinders, mounting blocks, shafts, gears, transmission belts, pull belts and guide wheels are two, and the two cylinders, mounting blocks, shafts, gears, transmission belts, pull belts and guide wheels are mirrored. This solution is not only suitable for the screening of conventional pharmaceutical raw materials, but also can flexibly respond to material screening tasks with different drug formulations and different particle size requirements by adjusting parameters such as the screen aperture and the frequency of the vibration motor, meet the diverse needs of drug production, and provide pharmaceutical companies with a set of screening solutions with strong versatility and wide adaptability, thereby improving the production flexibility and market competitiveness of the companies.

[0010] Preferably, a limiting block is fixedly connected to the inner wall of the hopper, and the limiting block is located on one side of the baffle.

[0011] Preferably, a corner of the limit block away from the baffle is chamfered, and there are two limit blocks, which are arranged in a mirror image.

[0012] Preferably, a material guide plate is fixedly connected to one side of the machine body, and the inner walls of the machine body and the material guide plate are both inclined, effectively guiding the screened materials to fall.

[0013] Preferably, a positioning block is fixedly connected to the surface of the body, a top block is slidably connected to the inner wall of the positioning block, a compression spring is fixedly connected to one side of the top block, one end of the compression spring is fixedly connected to the inner wall of the positioning block, a hook is fixedly connected to the surface of the hopper, a socket is provided on the surface of the positioning block, one end of the hook is inserted into the socket, so as to facilitate the stable installation of the hopper on the body.

[0014] Preferably, one end of the top block is buckled on the hook, one end of the hook on the hook is rounded, and the upper surface of the top block is inclined. When the hook is inserted into the positioning block, the top block can be pushed away.

[0015] Preferably, a sliding hole is opened on the surface of the positioning block, and a pull rod is fixedly connected to one side of the top block. One end of the pull rod slides with the inner wall of the sliding hole, and pulling the pull rod effectively drives the top block to move.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, the equipment is designed with full consideration of the convenience of operation. Whether it is loading, screening or cleaning, the operator can easily get started. For example, after the material screening is completed, a series of operations such as tilting the hopper, cleaning and resetting the material can be quickly completed by simply pulling the pull rod, operating the cylinder, etc., which reduces complex manual intervention, reduces labor intensity, improves production efficiency, makes the entire drug screening process smoother and more efficient, and can adapt to high-intensity production needs.

[0018] 2. In the present invention, the unique baffle design and cleaning mechanism can effectively avoid material residue. During the cleaning stage, the vibration motor is turned on and the hopper is tilted. The baffle moves in conjunction with the hopper to completely shake off the unfiltered large particles that may be attached to or stuck in the hopper, preventing the material from accumulating on the hopper and the screen and clogging the screen holes, thereby ensuring the stability and reliability of each screening operation, reducing the frequency of equipment maintenance, extending the service life of the equipment, and reducing production costs.

[0019] 3. In the present invention, this scheme is not only suitable for the screening of conventional drug raw materials, but also can flexibly respond to material screening tasks with different drug formulations and different particle size requirements by adjusting parameters such as the screen aperture and the vibration motor frequency, and meet the diversified drug production needs. It provides pharmaceutical companies with a set of screening solutions with strong versatility and wide adaptability, thereby improving the production flexibility and market competitiveness of the company. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention provides a three-dimensional structural schematic diagram of a vibrating screening device for drug production;

[0021] Figure 2The present invention proposes a vibrating screening device for drug production Figure 1 A schematic diagram of the structure at A;

[0022] Figure 3 The present invention provides a side view schematic diagram of a vibrating screening device for drug production;

[0023] Figure 4 The present invention proposes a vibrating screening device for drug production Figure 3 Schematic diagram of the structure at B;

[0024] Figure 5 The present invention proposes a vibrating screening device for drug production Figure 3 Schematic diagram of the structure at C;

[0025] Figure 6 The present invention proposes a vibrating screening device for drug production Figure 3 Schematic diagram of the structure at D;

[0026] Figure 7 The present invention provides a schematic diagram of an explosion structure at a mounting block in a vibrating screening device for drug production;

[0027] Figure 8 The present invention provides a schematic diagram of an explosion structure at a positioning block in a vibrating screening device for drug production.

[0028] Legend:

[0029] 1. Machine body; 2. Support frame; 3. Stabilizing spring; 4. Vibrating motor; 5. Mounting sleeve; 6. Hopper; 7. Screen; 8. Baffle; 9. Mounting block; 10. Gear; 11. Transmission belt; 12. Pull belt; 13. Limit block; 14. Cylinder; 15. Positioning seat; 16. Guide wheel; 17. Hook; 18. Through hole; 19. Slider; 20. Shaft; 21. Tension spring; 22. Positioning block; 23. Hook; 24. Pull rod; 25. Sliding hole; 26. Socket; 27. Top block; 28. Compression spring; 29. ​​Mounting seat; 30. Guide plate; 31. Bump; 32. Stabilizing block. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 8The present invention provides a technical solution: a vibrating screening device for drug production, comprising a body 1 and a support frame 2, the body 1 is located above the support frame 2, the upper surface of the support frame 2 is fixedly connected with four symmetrically arranged stabilizing springs 3, the upper ends of the stabilizing springs 3 are fixedly connected to the lower surface of the body 1, the surface of the body 1 is fixedly connected with a mounting sleeve 5, the mounting sleeve 5 is fixedly connected with a vibration motor 4, and also comprises a hopper 6, the hopper 6 is located above the body 1, the surface of the hopper 6 is fixedly connected with a stabilizing block 32, the surface of the body 1 is fixedly connected with a protrusion 31, the stabilizing block 32 rotates with the surface of the protrusion 31, the inner wall of the hopper 6 is fixedly connected with a screen 7, the inner wall of the hopper 6 rotates and is connected A baffle 8 is connected, a mounting seat 29 is fixedly connected to the surface of the body 1, a cylinder 14 is installed on the mounting seat 29, a positioning seat 15 is fixedly connected to the surface of the hopper 6, and the output end of the cylinder 14 is installed on the positioning seat 15. The equipment is designed with full consideration of the convenience of operation. Operators can easily get started in the loading, screening and cleaning stages. For example, after the material screening is completed, a series of operations such as tilting the hopper 6, cleaning and resetting the material can be quickly completed by simply pulling the pull rod 24 and operating the cylinder 14, thereby reducing complex manual intervention, reducing labor intensity, and improving production efficiency, making the entire drug screening process smoother and more efficient, and able to adapt to high-intensity production needs.

[0031] In this embodiment: the surface of the hopper 6 is fixedly connected with a mounting block 9, the inner wall of the mounting block 9 is slidably connected with a slider 19, the lower surface of the slider 19 is fixedly connected with a tension spring 21, the tension spring 21 is located in the mounting block 9, the lower end of the tension spring 21 is fixedly connected to the inner bottom wall of the mounting block 9, the inner wall of the hopper 6 is rotatably connected with a shaft 20, the shaft 20 is fixedly connected to the axis of the baffle 8, the end of the shaft 20 located outside the hopper 6 is fixedly connected with a gear 10, the upper surface of the slider 19 is fixedly connected with a transmission belt 11, the transmission belt 11 is meshed with the gear 10, and the end of the transmission belt 11 away from the slider 19 is fixed A pull belt 12 is connected, and a through hole 18 is opened at the end of the pull belt 12 away from the transmission belt 11. A hook 17 is fixedly connected to the surface of the cylinder 14, and the hook 17 passes through the through hole 18. The unique baffle 8 design and cleaning mechanism can effectively avoid material residue. In the cleaning stage, the vibration motor 4 is turned on and the hopper 6 is tilted. The baffle 8 moves in conjunction with the hopper 6, and can completely shake off the unfiltered large particles that may be attached or stuck in the hopper 6, preventing the material from accumulating on the hopper 6 and the screen 7 and clogging the screen holes, thereby ensuring the stability and reliability of each screening operation, reducing the frequency of equipment maintenance, extending the service life of the equipment, and reducing production costs.

[0032] Specifically, the surface of the hopper 6 is rotatably connected with a guide wheel 16, and one end of the pull belt 12 is placed on the guide wheel 16 to facilitate normal use of the equipment.

[0033] In this embodiment: the number of cylinders 14, mounting blocks 9, shafts 20, gears 10, transmission belts 11, pull belts 12 and guide wheels 16 are all two, and the two cylinders 14, mounting blocks 9, shafts 20, gears 10, transmission belts 11, pull belts 12 and guide wheels 16 are all mirror-imaged. This solution is not only suitable for the screening of conventional drug raw materials, but also can flexibly cope with material screening tasks with different drug formulations and different particle size requirements by adjusting parameters such as the aperture of the screen 7 and the frequency of the vibration motor 4, meet the diverse drug production needs, and provide pharmaceutical companies with a set of screening solutions with strong versatility and wide adaptability, thereby improving the production flexibility and market competitiveness of the companies.

[0034] Specifically, the inner wall of the hopper 6 is fixedly connected with a limiting block 13 , and the limiting block 13 is located on one side of the baffle 8 .

[0035] Specifically, a corner of the limiting block 13 away from the baffle 8 is chamfered, and there are two limiting blocks 13 , which are arranged in a mirror image.

[0036] Specifically, a material guide plate 30 is fixedly connected to one side of the machine body 1, and the inner walls of the machine body 1 and the material guide plate 30 are both inclined, which effectively guides the screened materials to fall.

[0037] Specifically, a positioning block 22 is fixedly connected to the surface of the body 1, a top block 27 is slidably connected to the inner wall of the positioning block 22, a compression spring 28 is fixedly connected to one side of the top block 27, one end of the compression spring 28 is fixedly connected to the inner wall of the positioning block 22, a hook 23 is fixedly connected to the surface of the hopper 6, a socket 26 is provided on the surface of the positioning block 22, one end of the hook 23 is inserted into the socket 26, so as to stably mount the hopper 6 on the body 1.

[0038] Specifically, one end of the top block 27 is buckled on the hook 23 , one end of the hook on the hook 23 is rounded, and the upper surface of the top block 27 is an inclined surface. When the hook 23 is inserted into the positioning block 22 , the top block 27 can be pushed away.

[0039] Specifically, a sliding hole 25 is opened on the surface of the positioning block 22, and a pull rod 24 is fixedly connected to one side of the top block 27. One end of the pull rod 24 slides with the inner wall of the sliding hole 25, and pulling the pull rod 24 effectively drives the top block 27 to move.

[0040] Working principle: Pour the drug raw materials to be screened into the hopper 6, then start the vibration motor 4, the vibration force generated by the vibration motor 4 is transmitted to the hopper 6 through the body 1, the hopper 6 vibrates accordingly, and the material begins to jump and roll on the screen 7. Since the screen 7 has a certain aperture, the drug particles with smaller particle sizes gradually pass through the screen 7 and fall into the body 1, while the materials with larger particle sizes remain above the screen 7, realizing the preliminary material separation. The qualified drug particles screened by the screen 7 fall into the body 1. Since the inner walls of the body 1 and the guide plate 30 are both inclined , the material will slide down the inclined surface, which is convenient for collection and subsequent processing. The unqualified large particles will remain on the screen 7 of the hopper 6. After the material screening is completed, the vibration motor 4 is turned off, and the pull rod 24 is pulled away from the hook 23. The pull rod 24 then drives the top block 27 to disengage from the hook 23, and the cylinder 14 is controlled to push the positioning seat 15. When the hook 23 is separated from the positioning block 22, the pull rod 24 can be released, and then the cylinder 14 is extended, and the hopper 6 is tilted accordingly. When the hopper 6 is tilting, the hook 17 pulls the drawstring 12, and the drawstring 12 then pulls The transmission belt 11 and the slider 19, the slider 19 pulls the tension spring 21, the tension spring 21 is deformed by the force, and at the same time, the transmission belt 11 drives the baffle 8 to rotate through the gear 10 and the shaft 20, and the baffle 8 rotates in the direction away from the limit block 13, stops the extension of the cylinder 14, and then turns on the vibration motor 4. Since the hopper 6 is in a tilted state at this time, and the baffle 8 loses its blockage on the hopper 6, the unfiltered large particles in the hopper 6 are shaken off. After completing the cleaning operation, the vibration motor 4 is turned off, and the cylinder 14 is controlled to drive the hopper 6 to reset. When the hopper 6 is reset, The movable pull belt 12 is reset, and then the tension spring 21 drives the slider 19, the transmission belt 11 and the baffle 8 to reset. The baffle 8 is abutted against one side of the limit block 13. The hopper 6 drives the hook 23 to insert into the socket 26 while resetting. One end of the hook 23 is abutted against the inclined surface of the top block 27. The top block 27 is squeezed and displaced backward. The compression spring 28 is deformed under the force. When the hook 23 is inserted into the positioning block 22, the top block 27 is ejected by the compression spring 28, and the top block 27 is abutted against the hook 23. Then the operation of the cylinder 14 is stopped, and the vibrating screen can be used again for drug screening operations.

Claims

1. A vibrating screening device for drug production, comprising a body (1) and a support frame (2), wherein the body (1) is located above the support frame (2), the upper surface of the support frame (2) is fixedly connected with four symmetrically arranged stabilizing springs (3), the upper ends of the stabilizing springs (3) are fixedly connected with the lower surface of the body (1), the surface of the body (1) is fixedly connected with a mounting sleeve (5), and a vibration motor (4) is fixedly connected in the mounting sleeve (5), characterized in that: The machine also comprises a hopper (6), wherein the hopper (6) is located above the machine body (1), a stabilizing block (32) is fixedly connected to the surface of the hopper (6), a protrusion (31) is fixedly connected to the surface of the machine body (1), the stabilizing block (32) and the surface of the protrusion (31) rotate, a screen (7) is fixedly connected to the inner wall of the hopper (6), a baffle (8) is rotatably connected to the inner wall of the hopper (6), a mounting seat (29) is fixedly connected to the surface of the machine body (1), a cylinder (14) is mounted on the mounting seat (29), a positioning seat (15) is fixedly connected to the surface of the hopper (6), and the output end of the cylinder (14) is mounted on the positioning seat (15).

2. A vibrating screening device for drug production according to claim 1, characterized in that: The surface of the hopper (6) is fixedly connected to a mounting block (9), the inner wall of the mounting block (9) is slidably connected to a slider (19), the lower surface of the slider (19) is fixedly connected to a tension spring (21), the tension spring (21) is located in the mounting block (9), the lower end of the tension spring (21) is fixedly connected to the inner bottom wall of the mounting block (9), the inner wall of the hopper (6) is rotatably connected to a shaft rod (20), the shaft rod (20) is fixedly connected to the axis of the baffle (8), and the shaft rod (20) is fixedly connected to the axis of the baffle (8). ) is fixedly connected to one end outside the hopper (6) with a gear (10), the upper surface of the slider (19) is fixedly connected to a transmission belt (11), the transmission belt (11) is meshingly connected to the gear (10), the end of the transmission belt (11) away from the slider (19) is fixedly connected to a pull belt (12), the end of the pull belt (12) away from the transmission belt (11) is provided with a through hole (18), the surface of the cylinder (14) is fixedly connected to a hook (17), the hook (17) passes through the through hole (18).

3. A vibrating screening device for drug production according to claim 2, characterized in that: The surface of the hopper (6) is rotatably connected to a guide wheel (16), and one end of the pull belt (12) is placed on the guide wheel (16).

4. The vibrating screening device for drug production according to claim 3, characterized in that: The number of the cylinder (14), the mounting block (9), the shaft (20), the gear (10), the transmission belt (11), the pull belt (12) and the guide wheel (16) is two, and the two cylinders (14), the mounting block (9), the shaft (20), the gear (10), the transmission belt (11), the pull belt (12) and the guide wheel (16) are all arranged in a mirror image.

5. The vibrating screening device for drug production according to claim 1, characterized in that: The inner wall of the hopper (6) is fixedly connected to a limit block (13), and the limit block (13) is located on one side of the baffle (8).

6. The vibrating screening device for drug production according to claim 5, characterized in that: The corner of the limiting block (13) on one side away from the baffle (8) is chamfered, and there are two limiting blocks (13), which are arranged in a mirror image.

7. The vibrating screening device for drug production according to claim 1, characterized in that: A material guide plate (30) is fixedly connected to one side of the machine body (1), and the inner walls of the machine body (1) and the material guide plate (30) are both inclined.

8. The vibrating screening device for drug production according to claim 1, characterized in that: A positioning block (22) is fixedly connected to the surface of the machine body (1), a top block (27) is slidably connected to the inner wall of the positioning block (22), a compression spring (28) is fixedly connected to one side of the top block (27), one end of the compression spring (28) is fixedly connected to the inner wall of the positioning block (22), a hook (23) is fixedly connected to the surface of the hopper (6), a plug hole (26) is provided on the surface of the positioning block (22), and one end of the hook (23) is inserted into the plug hole (26).

9. A vibrating screening device for drug production according to claim 8, characterized in that: One end of the top block (27) is buckled on the hook (23), one end of the hook on the hook (23) is rounded, and the upper surface of the top block (27) is an inclined surface.

10. The vibrating screening device for drug production according to claim 8, characterized in that: A sliding hole (25) is provided on the surface of the positioning block (22), and a pull rod (24) is fixedly connected to one side of the top block (27), and one end of the pull rod (24) slides with the inner wall of the sliding hole (25).

Citation Information

Patent Citations

  • Independent frequency modulation type vibrating screen

    CN112774974A