Solid raw and auxiliary material sieving device for producing infantile faropenem granules and use method of solid raw and auxiliary material sieving device

Abstract

The invention relates to the technical field of medicine solid raw and auxiliary material screening, in particular to a solid raw and auxiliary material screening device for infantile faropenem granule production and a using method thereof.The solid raw and auxiliary material screening device comprises a C-shaped support, and the top of the C-shaped support is fixedly connected with a fixing seat. A C-shaped baffle is arranged at the top of an upper side screen box to prevent internal materials from splashing out in the screening process, then a motor is started, a rotating shaft of the motor starts to rotate and drives an L-shaped strip connected with the rotating shaft to rotate together, due to the limiting effect of a right side T-shaped block on the L-shaped rod, the L-shaped strip drives a transverse rod of the L-shaped rod to rotate with the rotating shaft of the motor as the circle center, and meanwhile, the transverse rod of the L-shaped rod is driven to rotate. And the two T-shaped blocks generate continuous reciprocating motion by virtue of the limiting constraint of the T-shaped grooves on the T-shaped blocks, so that the upper screen box and the lower screen box are driven to do left-right reciprocating motion together, and the raw and auxiliary materials of the medicine in the upper screen box are quickly and downwards screened.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical solid raw material and excipient screening technology, specifically to a solid raw material and excipient screening device and its usage method for the production of pediatric faropenem granules. Background Technology

[0002] In the production of pediatric faropenem granules, sieving of solid raw materials and excipients is one of the key pretreatment processes to ensure the quality of the final drug. This process aims to obtain powder with uniform particle size and good flowability to ensure the accuracy and consistency of subsequent steps such as mixing, granulation, and packaging. This is crucial for pediatric medications that require high activity and precise dosage.

[0003] Existing traditional sieving equipment, such as vibrating screens and rotary vibrating screens, commonly used for sieving pediatric faropenem granules, often faces significant process challenges when handling raw materials and excipients with specific physicochemical properties, such as faropenem. These materials typically have a certain degree of hygroscopicity, and in actual production environments, frequent friction between powders easily generates and accumulates static electricity. These two characteristics work together to cause fine powder particles to adsorb and aggregate, easily absorbing moisture and forming soft but relatively strong clumps. In traditional sieving processes, these clumps, because their size is much larger than the screen mesh diameter, not only cannot be effectively separated by the vibration force generated by the equipment, but are also more likely to accumulate on the screen surface or directly embed or get stuck in the screen holes, causing a reduction in the effective diameter of the screen holes or even complete blockage. This situation directly leads to a significant reduction in the sieving throughput of the equipment and a sharp drop in sieving efficiency.

[0004] In view of this, we propose a sieving device for solid raw and auxiliary materials in the production of pediatric faropenem granules and its usage method. Summary of the Invention

[0005] The purpose of this invention is to provide a sieving device and method for solid raw materials in the production of pediatric faropenem granules, to solve the problem mentioned in the background art that pediatric faropenem granules have a certain degree of hygroscopicity, and in actual production environments, frequent friction between powders easily generates and accumulates static electricity. These two characteristics work together to cause fine powder particles to adsorb and aggregate, easily absorbing moisture and forming soft but strong clumps. In the traditional sieving process, these clumps, because their size is much larger than the screen aperture, are not only difficult to effectively separate by the vibration force generated by the equipment, but are also more likely to accumulate on the screen surface or directly embed or get stuck in the screen holes, causing the effective diameter of the screen holes to decrease or even be completely blocked. This situation directly leads to a significant reduction in the sieving throughput of the equipment and a sharp drop in sieving efficiency. To achieve the above objectives, the present invention provides the following technical solution: a sieving device for solid raw materials and excipients in the production of pediatric faropenem granules, comprising a C-shaped support, a fixed base fixedly connected to the top of the C-shaped support, T-shaped grooves opened on both the left and right sides of the top of the fixed base, T-shaped blocks slidably arranged inside the T-shaped grooves, a sieve box fixedly connected to the top of each of the two T-shaped blocks, a vibration mechanism for driving the sieve box to move provided on the front side of the T-shaped blocks, a cutting mechanism for preventing drug particles from clogging fixedly connected to the opposite side of the two vertical plates of the C-shaped support, and two springs fixedly connected to both the left and right sides of the horizontal block of the T-shaped block.

[0006] Preferably, the vibration mechanism includes a motor, which is embedded inside the T-shaped block on the left. An L-shaped bar is fixedly connected to the front side of the motor's rotating shaft. An L-shaped rod is fixedly connected to one end of the horizontal bar of the L-shaped bar. One end of the vertical bar of the L-shaped rod is rotatably engaged with the front side of the T-shaped block on the right. By driving the L-shaped linkage structure with a motor, the rotational motion is converted into the horizontal reciprocating motion required by the screen box. The power transmission path is clear, the structure is compact, and efficient and stable driving is achieved.

[0007] Preferably, there are two screen boxes. L-shaped plates are fixedly connected to the front and rear sides of the vertical block of the T-shaped block on the right side. The two vertical plates of the two L-shaped plates are fixedly connected to the front and rear sides of the upper screen box on opposite sides. The bottom of the upper screen box is slidably engaged with the top of the lower screen box. A through groove is provided on the lower side of the side of the lower screen box. The use of upper and lower double-layer screen boxes and linkage through L-shaped plates realizes the synchronous movement of the two-stage screening space. The through groove provides space for the fixed installation of the screen plate, ensuring that the relative sliding between the upper screen box and the screen plate can be realized.

[0008] Preferably, the cutting mechanism includes a screen plate slidably disposed inside the through groove. The left and right sides of the screen plate are fixedly connected to the opposite sides of the two vertical plates of the C-shaped support. Several connecting blocks are fixedly connected to the bottom of the screen plate. Several connecting rods are movably inserted into the inside of the upper screen box. Several cutting rings are fixedly sleeved on the sides of the connecting rods. The cutting rings correspond one-to-one with the screen holes on the inner wall of the screen box. The bottoms of the connecting blocks, in pairs, on opposite sides are rotatably engaged with the left and right sides of the connecting rods. The bottom of the left side of the screen box is slidably engaged with the top of the vertical block of the right T-shaped block. By combining the fixed screen plate with the moving connecting rods and cutting rings, the horizontal reciprocating motion of the screen box can drive the cutting rings to rotate, actively cutting the lumpy material stuck in the screen holes and effectively preventing screen hole blockage.

[0009] Preferably, a guide groove is provided on the left side of the connecting rod, and several limiting rods are fixedly connected to both sides of the upper screen box. The sides of the limiting rods slide in cooperation with the inside of the guide groove. The sliding cooperation between the guide groove and the limiting rods causes the limiting rods to rotate. When the screen box moves linearly, it can drive the connecting rod to rotate, ensuring the continuity and stability of the cutting action.

[0010] Preferably, collection frames are slidably connected to the left and right sides of the top of the fixed base. The interior of the two collection frames on opposite sides is slidably engaged with the side of the lower screen box. Two slots are opened on the top of the collection frames. A C-shaped baffle is placed on the top of the upper screen box. The lower sides of the two vertical plates of the C-shaped baffle penetrate the bottom of the screen plate and are slidably engaged with the interior of the slots. The sliding collection frames facilitate the removal and cleaning of finished products, while the C-shaped baffle is firmly fixed by inserting into the slots, forming an effective airtight barrier and significantly reducing the risk of material splashing during dynamic screening.

[0011] Preferably, the diameter of the sieve holes on the inner wall of the sieve box is twice the diameter of the sieve holes on the inner wall of the sieve plate. Discharge troughs are provided on both the left and right sides of the sieve box located on the lower side. The diameter difference between the sieve box and the sieve plate provides sufficient space for material to turn over and temporarily store, which improves the screening efficiency and can cut some stuck drug raw material particles. The discharge troughs on both sides ensure that the fine powder that has been screened can be discharged and collected quickly and evenly, avoiding the accumulation of materials in the bottom sieve box.

[0012] A method for using a sieving device for solid raw materials in the production of pediatric faropenem granules includes the following steps: S1. During operation, the raw materials and excipients to be screened are first poured into the upper screen box, and a C-shaped baffle is placed on top of the upper screen box to prevent the material from splashing out during the screening process. Then, the motor is started, and the motor's rotating shaft begins to rotate, driving the connected L-shaped strip to rotate together. Due to the limiting effect of the right T-shaped block on the L-shaped rod, the L-shaped strip drives the crossbar of the L-shaped rod to rotate around the rotating shaft of the motor. At the same time, with the limiting constraint of the T-shaped groove on the T-shaped block, the two T-shaped blocks move continuously back and forth, thereby driving the upper and lower screen boxes to move back and forth left and right together, thus realizing the rapid downward screening of the raw materials and excipients in the upper screen box. S2. When the drug material flows downward through the upper screen box, the particles that can pass through its screen holes will fall onto the upper surface of the screen plate. At this time, the screen box, which moves left and right continuously, will drive the drug raw materials and excipients stuck in the screen holes to move together, so that they continuously contact the screen holes on the side of the screen plate. By utilizing the interaction between the screen holes on the side of the screen plate and the screen holes on the side of the moving screen box, the clumps of drug raw materials and excipients stuck in the screen holes can be cut, thereby effectively reducing the possibility of the screen box screen holes being blocked by clumps of powder. S3. During the reciprocating movement of the upper sieve box, it will drive several limiting rods set on its left and right sides to move synchronously. Under the limiting action of the sieve plate on the connecting block and connecting rod, the side of the moving limiting rod will contact the inner wall of the guide groove, so that the upper sieve box can drive the limiting rod and the cutting ring on it to rotate when it moves. The rotating cutting ring can crush the larger particles of drug raw materials and excipients remaining in the sieve holes inside the upper sieve box. Then, the drug excipients that have been screened fall into the lower sieve box through the sieve plate, and with the help of its continuous left and right movement, the material is discharged into the collection frame through the discharge chute, thereby realizing the rapid screening and centralized collection of drug raw materials and excipients.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, during operation, the raw materials and excipients of the drug are first poured into the upper sieve box, and a C-shaped baffle is placed on top to prevent splashing. Then, the motor is started, and its rotating shaft drives the L-shaped bar to rotate. Under the limiting action of the L-shaped rod and the right T-shaped block, the L-shaped bar drives the L-shaped rod to rotate around the motor shaft. Through the constraint of the T-shaped block by the T-shaped groove, the two T-shaped blocks can move continuously back and forth, thereby driving the two sieve boxes to move back and forth left and right, completing the rapid downward sieving of the material in the upper box.

[0014] In this invention, when the material falls through the upper screen box, qualified particles pass through the screen holes and fall onto the surface of the screen plate. The screen box moves continuously from side to side, causing the material stuck in the screen holes to repeatedly contact the screen holes on the side of the screen plate. The relative movement between the screen holes cuts the clumps, effectively preventing the screen holes of the screen box from becoming clogged.

[0015] In this invention, the upper screen box moves synchronously, driving the limiting rods on both sides. Under the condition that the connecting block and connecting rod are limited by the screen plate, the limiting rod slides along the inner wall of the guide groove, driving the connecting rod and its cutting ring to rotate, thus crushing the larger particles remaining in the screen holes of the screen box. The screened material falls into the lower screen box through the screen plate, and finally, with its reciprocating motion, it is discharged from the discharge chute into the collection frame, realizing the rapid screening and collection of materials. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural unfolded view of the present invention; Figure 3 This is a three-dimensional structural development view of the vibration mechanism of the present invention; Figure 4 This is a partial three-dimensional structural schematic diagram of the vibration mechanism of the present invention; Figure 5 This is a three-dimensional structural diagram of the cutting mechanism of the present invention; Figure 6 This is a partial three-dimensional structural schematic diagram of the cutting mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 This is a partial three-dimensional structural development view of the sieve box of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point B in the middle; Figure 10 This is a three-dimensional structural diagram of the fixing base of the present invention.

[0017] In the diagram: 1. C-shaped support; 2. Fixed seat; 201. Collection frame; 202. Slot; 203. C-shaped baffle; 3. T-shaped groove; 4. T-shaped block; 401. L-shaped plate; 5. Screen box; 501. Through groove; 6. Vibration mechanism; 601. Motor; 602. L-shaped strip; 603. L-shaped rod; 7. Cutting mechanism; 701. Screen plate; 702. Connecting block; 703. Connecting rod; 704. Cutting ring; 705. Guide groove; 706. Limiting rod; 707. Discharge chute; 8. Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 10 This invention provides a technical solution: a sieving device for solid raw materials and excipients in the production of pediatric faropenem granules, comprising a C-shaped support 1, a fixed base 2 fixedly connected to the top of the C-shaped support 1, T-shaped grooves 3 on both the left and right sides of the top of the fixed base 2, T-shaped blocks 4 slidably arranged inside the T-shaped grooves 3, sieve boxes 5 fixedly connected to the top of the two T-shaped blocks 4, a vibration mechanism 6 for driving the sieve box 5 to move is provided on the front side of the T-shaped blocks 4, a cutting mechanism 7 for preventing drug particles from clogging is fixedly connected to the opposite side of the two vertical plates of the C-shaped support 1, and two springs 8 fixedly connected to the left and right sides of the horizontal blocks of the T-shaped blocks 4.

[0020] Example 1: Please see Figures 1 to 10 This embodiment provides a technical solution: The vibration mechanism 6 includes a motor 601, which is embedded inside the left T-shaped block 4. An L-shaped bar 602 is fixedly connected to the front side of the rotating shaft of the motor 601. An L-shaped rod 603 is fixedly connected to one end of the horizontal bar of the L-shaped bar 602. One end of the vertical rod of the L-shaped rod 603 is rotatably engaged with the front side of the right T-shaped block 4. In this embodiment, a motor 601 drives an L-shaped connecting rod structure to convert the rotational motion into the horizontal reciprocating motion required by the screen box 5. The power transmission path is clear, the structure is compact, and efficient and stable driving is achieved.

[0021] Example 2: Please see Figures 1 to 10 This embodiment provides a technical solution: There are two sieve boxes 5. L-shaped plates 401 are fixedly connected to the front and rear sides of the vertical block of the T-shaped block 4 on the right. The two vertical plates of the two L-shaped plates 401 are fixedly connected to the front and rear sides of the upper sieve box 5 on opposite sides. The bottom of the upper sieve box 5 is slidably engaged with the top of the lower sieve box 5. A through groove 501 is opened on the lower side of the side of the lower sieve box 5. Collection frames 201 are slidably connected to the left and right sides of the top of the fixed base 2. The interior of the two collection frames 201 on opposite sides is slidably engaged with the side of the lower sieve box 5. Two slots 202 are opened on the top of the collection frames 201. A C-shaped baffle 203 is placed on the top of the upper sieve box 5. The lower sides of the two vertical plates of the C-shaped baffle 203 penetrate the bottom of the sieve plate 701 and are slidably engaged with the interior of the slots 202. The diameter of the screen holes on the inner wall of the screen box 5 is twice the diameter of the screen holes on the inner wall of the screen plate 701. Discharge troughs 707 are provided on both the left and right sides of the lower screen box 5. In this embodiment, a double-layered sieve box 5 is used and linked by an L-shaped plate 401 to achieve synchronous movement of the two-stage sieving space. The through groove 501 provides space for the fixed installation of the sieve plate 701, ensuring that the relative sliding between the upper sieve box 5 and the sieve plate 701 can be realized. The sliding collection frame 201 facilitates the removal and cleaning of finished products, while the C-shaped baffle 203 is firmly fixed by inserting into the slot 202, forming an effective airtight barrier, which significantly reduces the risk of material splashing during dynamic sieving. The diameter difference between the sieve box 5 and the sieve plate 701 provides sufficient space for material to turn over and temporarily store, improving sieving efficiency and enabling the cutting of some stuck drug raw material particles. The discharge troughs 707 on both sides ensure that the sieved fine powder can be discharged and collected quickly and evenly, avoiding the accumulation of material in the bottom sieve box 5.

[0022] Example 3: Please see Figures 1 to 10 This embodiment provides a technical solution: The cutting mechanism 7 includes a sieve plate 701, which is slidably disposed inside the through groove 501. The left and right sides of the sieve plate 701 are fixedly connected to the opposite sides of the two vertical plates of the C-shaped support 1. Several connecting blocks 702 are fixedly connected to the bottom of the sieve plate 701. Several connecting rods 703 are movably inserted into the inside of the upper sieve box 5. Several cutting rings 704 are fixedly sleeved on the side of the connecting rods 703. The several cutting rings 704 correspond one-to-one with the sieve holes on the inner wall of the sieve box 5. The bottom of the several connecting blocks 702, which are in pairs, are rotatably engaged with the left and right sides of the connecting rods 703. The bottom of the left sieve box 5 is slidably engaged with the top of the vertical block of the right T-shaped block 4. A guide groove 705 is provided on the left side of the connecting rod 703. Several limiting rods 706 are fixedly connected to both sides of the upper screen box 5. The sides of the limiting rods 706 slide in cooperation with the inside of the guide groove 705. In this embodiment, the fixed screen plate 701 is combined with the moving connecting rod 703 and the cutting ring 704, so that the horizontal reciprocating motion of the screen box 5 can drive the cutting ring 704 to rotate, actively cutting the lumpy material stuck in the screen holes, effectively preventing screen hole blockage. The sliding cooperation between the guide groove 705 and the limiting rod 706 causes the limiting rod 706 to rotate. When the screen box 5 moves linearly, it can drive the connecting rod 703 to rotate, ensuring the continuity and stability of the cutting action.

[0023] A method for using a sieving device for solid raw materials in the production of pediatric faropenem granules includes the following steps: S1. During operation, the raw materials and excipients to be screened are first poured into the upper screen box 5, and the C-shaped baffle 203 is placed on top of the upper screen box 5 to prevent the internal materials from splashing out during the screening process. Then, the motor 601 is started, and the rotating shaft of the motor 601 begins to rotate, driving the L-shaped bar 602 connected to it to rotate together. Due to the limiting effect of the right T-shaped block 4 on the L-shaped rod 603, the L-shaped bar 602 drives the crossbar of the L-shaped rod 603 to rotate around the rotating shaft of the motor 601. At the same time, with the limiting constraint of the T-shaped groove 3 on the T-shaped block 4, the two T-shaped blocks 4 produce continuous reciprocating movement, thereby driving the upper and lower screen boxes 5 to move left and right together, so as to realize the rapid downward screening of the raw materials and excipients in the upper screen box 5. S2. When the drug material flows downward through the upper sieve box 5, the particles that can pass through its sieve holes will fall onto the upper surface of the sieve plate 701. At this time, the sieve box 5, which moves left and right continuously, will drive the drug raw materials and excipients stuck in the sieve holes to move together, so that they continuously contact the sieve holes on the side of the sieve plate 701. By utilizing the interaction between the sieve holes on the side of the sieve plate 701 and the sieve holes on the side of the moving sieve box 5, the clumps of drug raw materials and excipients stuck in the sieve holes can be cut off, thereby effectively reducing the possibility of the sieve holes of the sieve box 5 being blocked by clumps of powder. S3. During the reciprocating movement of the upper sieve box 5, it will drive several limiting rods 706 set on its left and right sides to move synchronously. Under the limiting action of the sieve plate 701 on the connecting block 702 and the connecting rod 703, the side of the moving limiting rod 706 will contact the inner wall of the guide groove 705, so that the upper sieve box 5 can drive the limiting rod 706 and the cutting ring 704 on it to rotate when it moves. The rotating cutting ring 704 can cut the larger particles of drug raw materials and excipients remaining in the sieve holes inside the upper sieve box 5. Then, the drug excipients that have been screened fall into the lower sieve box 5 through the sieve plate 701, and with the help of its continuous left and right movement, the material is discharged into the collection frame 201 through the discharge chute 707, thereby realizing the rapid screening and centralized collection of drug raw materials and excipients.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sieving device for solid raw materials in the production of pediatric faropenem granules, comprising a C-shaped support (1), wherein a fixed seat (2) is fixedly connected to the top of the C-shaped support (1), and T-shaped grooves (3) are provided on both the left and right sides of the top of the fixed seat (2), characterized in that: T-shaped blocks (4) are slidably arranged inside the T-shaped groove (3). A sieve box (5) is fixedly connected to the top of each of the two T-shaped blocks (4). A vibration mechanism (6) for moving the sieve box (5) is provided on the front side of the T-shaped block (4). A cutting mechanism (7) for preventing drug particles from clogging is fixedly connected to the opposite side of the two vertical plates of the C-shaped support (1). Two springs (8) are fixedly connected to the left and right sides of the horizontal block of the T-shaped block (4).

2. The solid raw material sieving device for the production of pediatric faropenem granules according to claim 1, characterized in that: The vibration mechanism (6) includes a motor (601), which is embedded inside the T-shaped block (4) on the left side. An L-shaped bar (602) is fixedly connected to the front side of the rotating shaft of the motor (601). An L-shaped rod (603) is fixedly connected to one end of the horizontal bar of the L-shaped bar (602). One end of the vertical rod of the L-shaped rod (603) is rotatably engaged with the front side of the T-shaped block (4) on the right side.

3. The solid raw material sieving device for the production of pediatric faropenem granules according to claim 1, characterized in that: There are two sieve boxes (5). The front and rear sides of the vertical block of the T-shaped block (4) on the right side are fixedly connected to L-shaped plates (401). The two vertical plates of the two L-shaped plates (401) are fixedly connected to the front and rear sides of the upper sieve box (5) on opposite sides. The bottom of the upper sieve box (5) is slidably engaged with the top of the lower sieve box (5). A through groove (501) is opened on the lower side of the side of the lower sieve box (5).

4. A sieving device for solid raw materials in the production of pediatric faropenem granules according to claim 3, characterized in that: The cutting mechanism (7) includes a sieve plate (701), which is slidably disposed inside the through groove (501). The left and right sides of the sieve plate (701) are fixedly connected to the opposite side of the two vertical plates of the C-shaped support (1). Several connecting blocks (702) are fixedly connected to the bottom of the sieve plate (701). Several connecting rods (703) are movably inserted into the inside of the upper sieve box (5). Several cutting rings (704) are fixedly sleeved on the side of the connecting rods (703). Several cutting rings (704) correspond one-to-one with the sieve holes on the inner wall of the sieve box (5). The bottom of the connecting blocks (702) are in pairs, with the bottom of the opposite side of each pair rotating and engaging with the left and right sides of the connecting rods (703). The bottom of the sieve box (5) on the left side slides and engages with the top of the vertical block of the T-shaped block (4) on the right side.

5. A sieving device for solid raw materials in the production of pediatric faropenem granules according to claim 4, characterized in that: A guide groove (705) is provided on the left side of the connecting rod (703). Several limiting rods (706) are fixedly connected to both sides of the upper screen box (5). The sides of the several limiting rods (706) slide in cooperation with the inside of the guide groove (705).

6. A sieving device for solid raw materials in the production of pediatric faropenem granules according to claim 4, characterized in that: Collection frames (201) are slidably connected to the left and right sides of the top of the fixed base (2). The interior of the two collection frames (201) on opposite sides is slidably engaged with the side of the sieve box (5) located on the lower side. Two slots (202) are opened on the top of the collection frame (201). A C-shaped baffle (203) is placed on the top of the sieve box (5) located on the upper side. The lower sides of the two vertical plates of the C-shaped baffle (203) penetrate the bottom of the sieve plate (701) and are slidably engaged with the interior of the slot (202).

7. A sieving device for solid raw materials in the production of pediatric faropenem granules according to claim 1, characterized in that: The diameter of the screen holes on the inner wall of the screen box (5) is twice the diameter of the screen holes on the inner wall of the screen plate (701). Discharge troughs (707) are provided on both the left and right sides of the screen box (5) located on the lower side.

8. A method of using a sieving device for solid raw materials in the production of pediatric faropenem granules, comprising using the sieving device for solid raw materials in the production of pediatric faropenem granules as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. During operation, the raw materials and excipients to be screened are first poured into the upper screen box (5), and the C-shaped baffle (203) is placed on the top of the upper screen box (5) to prevent the internal materials from splashing out during the screening process. Then, the motor (601) is started, and the rotating shaft of the motor (601) starts to rotate, driving the L-shaped bar (602) connected to it to rotate together. Due to the limiting effect of the right T-shaped block (4) on the L-shaped rod (603), the L-shaped bar (602) drives the crossbar of the L-shaped rod (603) to rotate around the rotating shaft of the motor (601). At the same time, with the limiting constraint of the T-shaped groove (3) on the T-shaped block (4), the two T-shaped blocks (4) generate continuous reciprocating movement, thereby driving the upper and lower screen boxes (5) to move back and forth together, so as to realize the rapid downward screening of the raw materials and excipients in the upper screen box (5). S2. When the drug material flows downward through the upper sieve box (5), the particles that can pass through its sieve holes will fall onto the upper surface of the sieve plate (701). At this time, the sieve box (5) that moves left and right continuously will drive the drug raw materials stuck in the sieve holes to move together, so that it will continuously contact the sieve holes on the side of the sieve plate (701). By utilizing the interaction between the sieve holes on the side of the sieve plate (701) and the sieve holes on the side of the moving sieve box (5), the clumps of drug raw materials stuck in the sieve holes can be cut off, thereby effectively reducing the possibility of the sieve box (5) sieve holes being blocked by clumps of powder. S3. During the reciprocating movement of the upper sieve box (5), it will drive several limiting rods (706) set on its left and right sides to move synchronously. Under the limiting action of the sieve plate (701) on the connecting block (702) and the connecting rod (703), the side of the moving limiting rod (706) will contact the inner wall of the guide groove (705), so that the upper sieve box (5) can drive the limiting rod (706) and the cutting ring (704) on it to rotate when it moves. The rotating cutting ring (704) can cut the larger particles of drug raw materials and excipients remaining in the sieve holes inside the upper sieve box (5). Then, the drug excipients that have been screened fall into the lower sieve box (5) through the sieve plate (701), and with the help of its continuous left and right movement, the material is discharged into the collection frame (201) through the discharge chute (707), thereby realizing the rapid screening and centralized collection of drug raw materials and excipients.

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