Medicinal auxiliary material screening device

Abstract

The utility model discloses a medicinal auxiliary material screening device which comprises a screening box, the top of the screening box is fixedly communicated with a feeding hopper, and two sets of sliding frames for assisting in auxiliary material screening are installed in the screening box in an up-down movable mode. Four sets of buffering supporting mechanisms for supporting the sliding frame are installed at the position, located at the bottom of the sliding frame, of the screening box, an inserting groove is formed in the sliding frame, and the sliding frame is matched with the four sets of buffering supporting mechanisms at the bottom of the sliding frame, so that the vibration mechanism vibrates the sliding frame; and then the screening mechanisms installed in the sliding frames are driven to conduct vibration screening on the pharmaceutic adjuvants, so that screening nets in the screening mechanisms in the two sets of sliding frames can conduct double screening on the pharmaceutic adjuvants, the pharmaceutic adjuvants reaching the needed particle size fall into a collecting box at the bottom of the screening box to be intensively taken out, and the pharmaceutic adjuvants with the particle size not reaching the standard are discharged through two sets of discharging openings. The device has the advantages that manual operation is reduced, labor cost is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical excipient production technology, specifically a pharmaceutical excipient screening device. Background Technology

[0002] Pharmaceutical excipients refer to the excipients and additives used in the production of pharmaceuticals and the preparation of prescriptions. They are substances, other than the active ingredients, that have undergone reasonable safety assessments and are included in pharmaceutical preparations. They are mainly in the form of granules, liquids, and powders. Screening devices are equipment that use the relative movement of granular materials and the screen surface to allow some particles to pass through the screen holes for screening.

[0003] For example, a screening device for pharmaceutical excipient production (Announcement No.: CN217190763U) includes a main body, a combined vibration mechanism, a layered fixing mechanism, and a layered screening mechanism. The combined vibration mechanism is located at the bottom of the main body, and the layered fixing mechanism is connected inside the combined vibration mechanism. The layered screening mechanism is located inside the layered fixing mechanism. When screening is required, the combined vibration mechanism inside the main body vibrates, and the layered fixing mechanism connected to the combined vibration mechanism is also vibrated. At the same time, the layered screening mechanism inside vibrates in layers. Through this linkage, the screening screen at the top of the layered screening mechanism screens the granular pharmaceutical excipients of different sizes layer by layer downwards. The entire operation is carried out within the equipment, isolating the pharmaceutical excipients from interference from external substances during the screening process.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, the aforementioned equipment, when applied, utilizes a combined vibration mechanism within its main body. During vibration, the layered fixing mechanism connected to the combined vibration mechanism is also vibrated, causing the internally set layered sieving mechanism to vibrate in layers. However, in the use of this device, the excipients in the sieving area of ​​the sieving screen are not easily removed. It is necessary to manually pull the layered sieving mechanism out of the layered fixing mechanism in order to remove the excipients in the sieving area of ​​the sieving screen. This step increases the complexity of the operation, and each set of layered sieving mechanisms requires manual pulling open of the bottom plate before the equipment can perform sieving work, which further prolongs the operation time. This not only increases labor costs but may also lead to operational errors or low efficiency due to human factors. Therefore, we need to propose a pharmaceutical excipient sieving device. Utility Model Content

[0005] The purpose of this invention is to provide a pharmaceutical excipient screening device that reduces manual operation, lowers labor costs, and improves production efficiency, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pharmaceutical excipient sieving device includes a sieving box, with a feed hopper fixedly connected to the top of the sieving box. Inside the sieving box, two sets of sliding frames are vertically movable to assist in sieving the excipients. At the bottom of the sliding frames, four sets of buffer support mechanisms are installed to support the sliding frames. Insertion slots are provided on the sliding frames, and a sieving mechanism for sieving the excipients is installed inside the insertion slots. A vibration mechanism for use with the sieving mechanism is installed at one end of the sieving box near the sliding frames. An outlet is provided at the other end of the sieving box near the sliding frames, and an outlet plate is fixedly installed on the outside of the outlet. A collection box for collecting the sieved excipients is inserted into the bottom of the sieving box.

[0008] Preferably, the screening mechanism includes a mounting frame, a screening screen is fixedly installed inside the mounting frame, and a mounting plate is fixedly installed on one side of the mounting frame. The mounting plate and the mounting frame are installed inside the insertion slot by bolts.

[0009] Preferably, the buffer support mechanism includes a fixed block, which is fixedly installed on one side inner wall of the screening box. A buffer spring is fixedly installed on the top of the fixed block, and a connecting block is fixedly installed on the top of the buffer spring. The top of the connecting block is fixedly connected to the bottom of the slide frame.

[0010] Preferably, a limiting rod is inserted inside the buffer spring, the top of the limiting rod is fixedly connected to the bottom of the connecting block, the bottom of the limiting rod passes through the fixed block and extends to the bottom of the fixed block, and the outer wall of the limiting rod is slidably connected to the inside of the fixed block.

[0011] Preferably, the vibration mechanism includes a rotating rod, which is rotatably mounted on the inner wall of one side of the screening box. One end of the rotating rod passes through the screening box and is fixedly connected to a drive motor, while the outer wall of the other end of the rotating rod is fixedly sleeved with a cam that pushes the bottom of the slide frame.

[0012] Preferably, a discharge trough is provided on one side of the bottom of the screening box for the collection box to be inserted into, and the collection box is slidably inserted into the bottom of the screening box through the discharge trough.

[0013] Preferably, the slide frame is installed at an angle, and a guide plate is fixedly installed at the lower angle of the slide frame, the guide plate being located inside the discharge port.

[0014] Preferably, the screening box is provided with a maintenance port on one side of each of the two sets of sliding frames, and a maintenance plate is installed inside the maintenance port.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a sliding frame in conjunction with four sets of buffer support mechanisms at its bottom. This causes a vibration mechanism to vibrate the sliding frame, which in turn drives a screening mechanism installed inside the sliding frame to vibrate and screen pharmaceutical excipients. The screening screens in the two sets of screening mechanisms within the sliding frame can perform double screening of the pharmaceutical excipients. Pharmaceutical excipients that meet the required particle size fall into the collection box at the bottom of the screening box and are collected and removed. Pharmaceutical excipients that do not meet the required particle size are discharged through two sets of discharge ports. This invention has the advantages of reducing manual operation, lowering labor costs, and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the screening box of this utility model;

[0019] Figure 3 This is a schematic diagram of the sliding frame and screening mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the screening mechanism, buffer support mechanism, and vibration mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the maintenance port and discharge trough of this utility model.

[0022] In the diagram: 1. Screening box; 2. Feed hopper; 3. Sliding frame; 4. Buffer support mechanism; 41. Fixed block; 42. Limiting rod; 43. Buffer spring; 44. Connecting block; 5. Insertion slot; 6. Screening mechanism; 61. Mounting frame; 62. Mounting plate; 63. Screening screen; 7. Vibration mechanism; 71. Rotating rod; 72. Drive motor; 73. Cam; 8. Guide plate; 9. Discharge port; 10. Discharge plate; 11. Discharge chute; 12. Collection box; 13. Maintenance port; 14. Maintenance plate. Detailed Implementation

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

[0024] Please see Figure 1-5 This utility model provides a technical solution:

[0025] A pharmaceutical excipient sieving device includes a sieving box 1, with a feed hopper 2 fixedly connected to the top of the sieving box 1. Inside the sieving box 1, two sets of sliding frames 3 are installed vertically to assist in sieving the excipients. At the bottom of the sieving box 1, four sets of buffer support mechanisms 4 are installed to support the sliding frames 3. The sliding frames 3 have insertion slots 5, and a sieving mechanism 6 for sieving the excipients is installed inside the insertion slots 5. At one end of the sieving box 1, a vibration mechanism 7 is installed to cooperate with the sieving mechanism 6. At the other end of the sieving box 1, a discharge port 9 is opened, and a discharge plate 10 is fixedly installed on the outside of the discharge port 9. At the bottom of the sieving box 1, a collection box 12 for collecting the sieved excipients is inserted.

[0026] Furthermore, the screening mechanism 6 includes a mounting frame 61, in which a screening screen 63 is fixedly installed. A mounting plate 62 is fixedly installed on one side of the mounting frame 61. The mounting plate 62 and the mounting frame 61 are bolted to the inside of the insertion slot 5, which facilitates the disassembly and assembly of the screening mechanism 6 by bolts, and thus facilitates the replacement or maintenance of the screening screen 63 in the screening mechanism 6 as needed.

[0027] It is worth noting that the mesh sizes of the screening screens 63 in the two screening mechanisms 6 are different, with the mesh size of the upper screening screen 63 being larger than that of the lower screening screen 63.

[0028] Furthermore, the buffer support mechanism 4 includes a fixed block 41, which is fixedly installed on the inner wall of one side of the screening box 1. A buffer spring 43 is fixedly installed on the top of the fixed block 41, and a connecting block 44 is fixedly installed on the top of the buffer spring 43. The top of the connecting block 44 is fixedly connected to the bottom of the slide frame 3, so that the slide frame 3 can be provided with movable support by the buffer spring 43 in conjunction with the connecting block 44 and the fixed block 41.

[0029] Specifically, a limiting rod 42 is inserted inside the buffer spring 43. The top of the limiting rod 42 is fixedly connected to the bottom of the connecting block 44. The bottom of the limiting rod 42 passes through the fixing block 41 and extends to the bottom of the fixing block 41. The outer wall of the limiting rod 42 is slidably connected to the inside of the fixing block 41, so that the movement of the slide frame 3 can be limited by the limiting rod 42 in conjunction with the fixing block 41, so that it can only move up and down.

[0030] Furthermore, the vibration mechanism 7 includes a rotating rod 71, which is rotatably mounted on the inner wall of one side of the screening box 1. One end of the rotating rod 71 passes through the screening box 1 and is fixedly connected to a drive motor 72. The other end of the rotating rod 71 is fixedly sleeved with a cam 73 that pushes the bottom of the slide frame 3, so that the cam 73 on the rotating rod 71 can be rotated by the drive motor 72, so that the cam 73 continuously pushes the slide frame 3 during the rotation process.

[0031] Specifically, a discharge trough 11 is provided on one side of the bottom of the screening box 1 for the collection box 12 to be inserted. The collection box 12 is slidably inserted into the bottom of the screening box 1 through the discharge trough 11, so that the pharmaceutical excipients that have undergone double screening can be collected through the collection box 12 and can be taken out in a concentrated manner.

[0032] Specifically, the slide frame 3 is installed at an angle, and a guide plate 8 is fixedly installed at the lower end of the angled slide frame 3. The guide plate 8 is located inside the discharge port 9, which facilitates the guide plate 8 to guide the substandard particle size pharmaceutical excipients screened by the screening mechanism 6 to the discharge port 9, so that the substandard particle size pharmaceutical excipients are discharged from the discharge plate 10.

[0033] Specifically, the screening box 1 is provided with a maintenance port 13 on one side of each of the two sets of sliding frames 3. The maintenance port 13 is equipped with a maintenance plate 14, which facilitates the disassembly and assembly of the screening mechanism 6 through the maintenance port 13.

[0034] Working Principle: In use, this utility model feeds pharmaceutical excipients into the screening box 1 via the feeding hopper 2 for screening. The excipients fall into the sliding frame 3 located above. The drive motor 72 in the vibration mechanism 7 drives the cam 73 on the rotating rod 71 to rotate. During the rotation, the cam 73 continuously pushes the sliding frame 3, causing the four sets of buffer support mechanisms 4 at the bottom of the sliding frame 3 to buffer and reduce shock. This, in turn, drives the screening mechanism 6 installed inside the sliding frame 3 to vibrate and screen the pharmaceutical excipients. The screening screens 63 in the two sets of screening mechanisms 6 in the sliding frame 3 can perform double screening of the pharmaceutical excipients. The pharmaceutical excipients that meet the required particle size fall into the collection box 12 at the bottom of the screening box 1 and are collected and removed. The pharmaceutical excipients that do not meet the standard particle size are discharged through the two sets of discharge ports 9. This has the advantages of reducing manual operation, reducing labor costs, and improving production efficiency.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical excipient sieving device, comprising a sieving box (1), characterized in that: The top of the screening box (1) is fixedly connected to the feed hopper (2). Inside the screening box (1), two sets of sliding frames (3) are installed vertically to assist in screening the auxiliary materials. At the bottom of the sliding frames (3), four sets of buffer support mechanisms (4) are installed to support the sliding frames (3). The sliding frames (3) are provided with insertion slots (5). Inside the insertion slots (5), a screening mechanism (6) for screening the auxiliary materials is installed. The screening mechanism (6) includes a mounting frame (61), a screening screen (63) is fixedly installed inside the mounting frame (61), and a mounting plate (62) is fixedly installed on one side of the mounting frame (61). The mounting plate (62) and the mounting frame (61) are installed inside the insertion slot (5) by bolts. The slide frame (3) is installed at an angle. A guide plate (8) is fixedly installed at the lower angle of the slide frame (3). The guide plate (8) is located inside the discharge port (9). A vibration mechanism (7) for use with the screening mechanism (6) is installed at one end of the slide frame (3). A discharge port (9) is opened at the other end of the slide frame (3). A discharge plate (10) is fixedly installed on the outside of the discharge port (9). A collection box (12) for collecting the screened auxiliary materials is inserted into the bottom of the screening box (1).

2. The pharmaceutical excipient screening device according to claim 1, characterized in that: The buffer support mechanism (4) includes a fixed block (41), which is fixedly installed on the inner wall of one side of the screening box (1). A buffer spring (43) is fixedly installed on the top of the fixed block (41), and a connecting block (44) is fixedly installed on the top of the buffer spring (43). The top of the connecting block (44) is fixedly connected to the bottom of the slide frame (3).

3. The pharmaceutical excipient screening device according to claim 2, characterized in that: The buffer spring (43) is internally inserted with a limiting rod (42). The top of the limiting rod (42) is fixedly connected to the bottom of the connecting block (44). The bottom of the limiting rod (42) passes through the fixing block (41) and extends to the bottom of the fixing block (41). The outer wall of the limiting rod (42) is slidably connected to the inside of the fixing block (41).

4. The pharmaceutical excipient screening device according to claim 1, characterized in that: The vibration mechanism (7) includes a rotating rod (71), which is rotatably mounted on the inner wall of one side of the screening box (1). One end of the rotating rod (71) passes through the screening box (1) and is fixedly connected to a drive motor (72). The other end of the rotating rod (71) is fixedly sleeved with a cam (73) that pushes the bottom of the slide frame (3).

5. A pharmaceutical excipient screening device according to claim 1, characterized in that: The bottom side of the screening box (1) is provided with a discharge trough (11) for the collection box (12) to be inserted. The collection box (12) is slidably inserted into the bottom of the screening box (1) through the discharge trough (11).

6. The pharmaceutical excipient screening device according to claim 1, characterized in that: The screening box (1) is located on one side of the two sets of sliding frames (3) and a maintenance port (13) is provided. A maintenance plate (14) is installed inside the maintenance port (13).

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