A pharmaceutical raw material pulverizing device
By introducing preliminary cutting, screening, and grinding mechanisms into the pulverizing device, the problem of long strip-shaped raw materials entanglement is solved, achieving an efficient and stable pulverizing process and ensuring the particle size uniformity of pharmaceutical raw materials and the safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JIALIN MEDICAL CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional pulverizing devices are prone to tangling on the main shaft when processing long strips of raw materials, which increases the motor load, causes the equipment to overheat or even burn out, and reduces pulverizing efficiency, making it difficult to meet the high-efficiency, safe and precise pulverizing needs of modern pharmaceutical companies.
The system employs a preliminary cutting and screening mechanism. The alternating shearing force of vertical and ring blades initially cuts the long strip-shaped raw materials. Combined with the design of the spiral guide plate and screen, the raw materials are uniformly dispersed and precisely crushed. The grinding mechanism is then used for final refinement to ensure particle size uniformity and equipment stability.
It effectively prevents raw material entanglement, improves crushing efficiency and equipment stability, ensures particle size uniformity and crushing quality, meets the high efficiency and precision requirements of pharmaceutical production, and reduces equipment failure and downtime.
Smart Images
Figure CN224486180U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pharmaceutical raw material pulverization technology, and in particular to a pharmaceutical raw material pulverization device. Background Technology
[0002] Against the backdrop of the pharmaceutical industry's transformation towards intelligent and refined processes, the pulverization of pharmaceutical raw materials, as a key pre-process in drug production, directly impacts the safety and efficacy of drugs through its efficiency and quality. With the stringent requirements of the Good Manufacturing Practice (GMP) for pharmaceuticals and the precise particle size requirements of new drug dosage forms, traditional pulverization equipment is no longer sufficient to meet the production standards of modern pharmaceutical companies. Highly efficient, safe, and precisely controllable pulverization devices have become one of the core pieces of equipment for improving pharmaceutical production capacity and quality.
[0003] A search revealed Chinese patent publication number CN222358576U, which discloses a pharmaceutical raw material pulverizing device. The device includes a support frame, with a pulverizing tank rotatably connected to one of the two side walls of the support frame. A motor housing is fixedly mounted on the bottom surface of the pulverizing tank, and a second motor is installed inside the motor housing. The output end of the second motor extends through and into the interior of the pulverizing tank, and pulverizing teeth are installed on the output end of the second motor located inside the pulverizing tank. A top plate is provided on the upper part of the pulverizing tank. This pharmaceutical raw material pulverizing device, by incorporating a motor, pulverizing tank, pulverizing blades, and pulverizing teeth, can cut the medicinal plants inside the pulverizing tank using the pulverizing blades, and further pulverize the medicinal plants using the bottom pulverizing teeth. This prevents the medicinal plants from getting stuck on the inner wall of the pulverizing tank, thus improving pulverizing efficiency and effectiveness, and saving time.
[0004] The aforementioned patent specification mentions that "the medicinal plants in the pulverizing tank are cut by the pulverizing blades, and the medicinal plants can be pulverized again by the bottom pulverizing teeth, which avoids the medicinal plants from getting stuck on the inner wall of the pulverizing tank and being unable to be pulverized. It also improves the pulverizing efficiency and effect and saves time." The above content can pre-treat the medicinal materials. However, when long strips of raw materials come into contact with the rotating blades, they are very easy to get tangled on the main shaft, forming a tight entanglement layer. This causes a sharp increase in the motor load, which can lead to overheating of the equipment or even burn out the motor. It can also cause a significant decrease in pulverizing efficiency. Therefore, a pharmaceutical raw material pulverizing device is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this application is to provide a pharmaceutical raw material pulverizing device, which aims to improve the problem of long strip raw materials getting entangled in some pulverizing devices.
[0006] The pharmaceutical raw material pulverizing device provided in this application adopts the following technical solution:
[0007] A pharmaceutical raw material pulverizing device includes a housing. A transparent inspection ring is fixedly connected to the top of the housing. A fixed plate is fixedly connected to the top of the transparent inspection ring. A preliminary cutting mechanism is provided on the top of the fixed plate. A central rotating shaft is fixedly connected to the outside of the preliminary cutting mechanism. A grinding mechanism is provided at the bottom of the central rotating shaft. A screening mechanism is provided at the middle of the central rotating shaft. Support plates are fixedly connected to both sides of the outer side of the housing. The preliminary cutting mechanism includes a motor, which is fixedly connected to the top of the fixed plate. The drive end of the preliminary cutting mechanism is fixedly connected to the central rotating shaft. A cutting assembly is fixedly connected to the outside of the central rotating shaft. Multiple vertical blades are fixedly connected to the outside of the central rotating shaft. An annular blade is fixedly connected to the middle of the vertical blades.
[0008] By adopting the above technical solution: after the drug raw material enters the device through the feed inlet, the motor on the top of the fixed plate drives the central rotating shaft to rotate, which drives the preliminary cutting mechanism to work. The cutting components, vertical blades and ring blades on the central rotating shaft work together to initially cut the long strip of raw material into small segments to avoid entanglement. Subsequently, the material falls spirally down along the inside of the shell under the guidance of the spiral guide plate. Along the way, the screening mechanism on the outside of the middle of the central rotating shaft will continue to crush the unqualified material. Finally, the material falls to the bottom and is finely ground by the grinding mechanism connected to the bottom of the central rotating shaft. Throughout the process, the transparent inspection ring allows the operator to observe the internal situation, while the support plates on both sides of the shell ensure the stable operation of the device. The combination of multiple structures achieves efficient crushing of raw materials with uniform particle size and stable equipment.
[0009] Preferably, the screening mechanism includes two crushing blades, the interior of which is fixedly connected to the middle outer side of the central rotating shaft, a screen is slidably connected to the middle outer side of the central rotating shaft, and the other crushing blade is positioned directly below the screen.
[0010] By adopting the above technical solution, the initially cut pharmaceutical raw materials fall to the screening mechanism under the action of the spiral guide plate. The central rotating shaft drives two pulverizing blades to rotate at high speed, performing secondary pulverization of the material. The screen is slidably connected to the outside of the central rotating shaft. When the particle size of the material is smaller than the screen aperture, it can pass through the screen and continue to fall. The larger particles are intercepted by the screen and continuously pulverized by the pulverizing blades above. The pulverizing blades located directly below the screen can also supplement the pulverization of the material that has passed through the screen, ensuring uniform particle size. Through the linkage between the screen and the pulverizing blades, this mechanism achieves simultaneous pulverization and screening, controls the particle size of the material, effectively prevents unqualified raw materials from entering the next process, and ensures the quality of pharmaceutical raw material pulverization.
[0011] Preferably, the cutting assembly includes a fixed connecting ring, the inside of which is fixedly connected to the outside of the central rotating shaft, and three auxiliary cutting blades are fixedly connected to the outside of the fixed connecting ring.
[0012] By adopting the above technical solution, when the drug raw material enters the device through the feed inlet, motor 1 drives the central rotating shaft to rotate at high speed. The fixed connecting ring, which is fixedly connected to the central rotating shaft, rotates accordingly, driving the three auxiliary cutting blades on its exterior to perform initial cutting of the long strip of raw material. The auxiliary cutting blades divide the long strip of raw material into smaller segments from different angles. Together with the vertical and ring blades on the central rotating shaft, they form an alternating shearing force to further crush the raw material. The cutting assembly composed of the fixed connecting ring and the auxiliary cutting blades, through multi-angle and multi-directional pre-cutting treatment, effectively prevents the long strip of raw material from entangled around the central rotating shaft, while improving the initial crushing efficiency of the raw material, laying the foundation for subsequent crushing processes, and ensuring the efficient and stable operation of the entire crushing process.
[0013] Preferably, connecting blocks are fixedly connected to both outer sides of the screen, and two sliding grooves are opened on the outer side of the outer shell, with the connecting blocks slidably connected inside the sliding grooves of the outer shell.
[0014] By adopting the above technical solution, during the drug raw material pulverization process, the connecting blocks on both sides of the screen and the sliding grooves on the outer shell form a sliding connection structure. When it is necessary to adjust the pulverized particle size or avoid screen clogging, the connecting blocks can be driven by motor two to slide up and down within the sliding grooves of the outer shell, thereby changing the position of the screen on the central rotating shaft. The up and down movement of the screen not only flexibly adjusts the distance between it and the pulverizing blades, controlling the particle size standard of the pulverized material, but also generates a mechanical vibration effect through the dynamic displacement of the screen, causing the material stuck in the screen holes to fall off, effectively preventing screen clogging, ensuring the continuous and efficient operation of the screening mechanism, and improving the adaptability and stability of the entire pulverizing device to raw materials with different particle size requirements.
[0015] Preferably, two motors are fixedly connected to the outside of the housing, and the drive end of the motors is fixedly connected to the bottom of the connecting block. A baffle is provided at the bottom of the crushing blade below.
[0016] By adopting the above technical solution, during the drug raw material pulverization operation, two motors fixed on the outside of the outer shell are connected to the bottom of the connecting block through the drive end, which can precisely control the lifting and lowering of the screen. The connecting block is driven by the two motors, causing the screen to slide up and down in the groove of the outer shell, changing the distance between the screen and the upper and lower pulverizing blades, so as to achieve the screening and pulverization of raw materials with different particle sizes. The baffle set at the bottom of the lower pulverizing blade can prevent the pulverized material from falling too early, ensuring that the material is fully pulverized and screened in the screening mechanism, improving the pulverization efficiency and the accuracy of material screening, and reducing the generation of unqualified products.
[0017] Preferably, a spiral guide plate is rotatably connected to the outside of the central rotating shaft, and the spiral guide plate is fixedly connected to the inside of the outer shell.
[0018] By adopting the above technical solution, during the drug raw material pulverization process, the initially cut material falls to the spiral guide plate outside the central rotating shaft. Since the spiral guide plate is fixedly connected to the inside of the outer shell, and the central rotating shaft does not drive the spiral guide plate to rotate, the material falls slowly along the spiral trajectory of the spiral guide plate under its own gravity and the action of the airflow above. In the spiral motion, it achieves more uniform dispersion and avoids local accumulation. By controlling the falling speed and path of the material, the spiral guide plate effectively extends the pulverization time, improves the pulverization effect, ensures that the material is fully processed before entering the next process, and also reduces the burden on the screening mechanism, improving the working efficiency and stability of the entire device.
[0019] Preferably, the grinding mechanism includes a connecting shaft, the top of which is fixedly connected to the outside of the central shaft, and a grinding disc is fixedly connected to the bottom of the connecting shaft.
[0020] By adopting the above technical solution, when the qualified drug raw materials fall to the bottom of the device, the central rotating shaft drives the grinding disc to rotate at high speed through the connecting rotating shaft. The grinding disc and the bottom side of the inner shell form a grinding gap. The material is subjected to mechanical extrusion and friction by the grinding disc in this gap, which further refines it to the micron-level particle size required for pharmaceutical manufacturing. The connecting rotating shaft serves as the transmission link between the central rotating shaft and the grinding disc, ensuring that the grinding process is stable and efficient, and meeting the strict requirements of high-end pharmaceutical preparations for the ultra-fine pulverization of raw materials.
[0021] Preferably, a plurality of grinding protrusions are fixedly connected to the bottom of the grinding disc, and the bottom of the grinding protrusions is slidably connected to the inner bottom side of the outer shell.
[0022] By adopting the above technical solution, after the drug raw materials pass through the screening mechanism, they fall to the bottom of the device. At this time, the central rotating shaft drives the grinding disc to rotate at high speed through the connecting rotating shaft. Multiple grinding protrusions fixed at the bottom of the grinding disc rotate accordingly, generating sliding friction with the bottom side of the inner shell. The grinding protrusions break the traditional planar grinding mode. With their special protruding structure, they increase the contact area and friction with the raw materials, squeezing and grinding the raw materials into finer particles. During the high-speed rotation, the grinding protrusions impact and grind the materials in multiple directions and at high frequency, so that the materials are fully refined in the narrow space between the grinding disc and the bottom of the outer shell.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Through the interlaced shearing force formed by vertical blades and ring blades, large pieces of raw materials are quickly cut into small pieces. The fixed connecting ring drives the auxiliary cutting blades to perform initial cutting of long strips of raw materials from different angles, dividing them into small segments. The synergistic action of multiple sets of blades significantly reduces the time required for raw material crushing compared to a single blade, achieving a fast and efficient crushing process, increasing the raw material processing capacity per unit time, and meeting the high requirements of pharmaceutical production for crushing efficiency.
[0025] 2. By driving the screen to slide up and down by the motor, the distance between the screen and the crushing blades is changed, allowing larger particles to have more space to be crushed. The dynamic movement of the screen can generate a mechanical vibration effect, which causes the material stuck in the screen holes to fall off, avoiding blockage, reducing the frequency of manual cleaning, reducing equipment downtime caused by blockage, and significantly improving production continuity and equipment reliability. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a pharmaceutical raw material pulverizing device proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the central rotating shaft of a pharmaceutical raw material pulverizing device proposed in this utility model;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0029] Figure 4 for Figure 2 Enlarged view at point B in the middle;
[0030] Figure 5 This is a schematic diagram of the structure of the support plate of a pharmaceutical raw material pulverizing device proposed in this utility model;
[0031] Figure 6 for Figure 5 Enlarged view at point C;
[0032] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Fixing plate; 3. Transparent inspection ring; 4. Preliminary cutting mechanism; 41. Motor 1; 42. Cutting assembly; 421. Fixing connecting ring; 422. Auxiliary cutting blade; 43. Ring blade; 44. Vertical blade; 5. Grinding mechanism; 51. Connecting shaft; 52. Grinding disc; 53. Grinding protrusion; 6. Support plate; 7. Central shaft; 8. Spiral guide plate; 9. Screening mechanism; 91. Crushing blade; 92. Screen; 93. Connecting block; 94. Motor 2. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6This application will be described in further detail below.
[0034] A pharmaceutical raw material pulverizing device, as described in the following figure Figures 1 to 3 The device includes an outer casing 1, which protects the internal structure and isolates dust and noise generated during the crushing process, ensuring stable operation. A transparent inspection ring 3, made of high-strength transparent material, is fixedly connected to the top of the outer casing 1. This ring allows for real-time observation of the internal raw material crushing status, blade operation, and any abnormal blockages, enabling timely detection and resolution of problems and preventing drug quality issues or production interruptions due to equipment malfunctions. A fixing plate 2 is fixedly connected to the top of the transparent inspection ring 3, supporting and fixing the preliminary cutting mechanism 4 to ensure its operational stability. An inlet is located on the outside of the fixing plate 2, and the preliminary cutting mechanism 4 is located on the top of the fixing plate 2. The preliminary cutting mechanism 4 feeds the incoming drug raw materials... The initial processing cuts large or long raw materials into smaller sizes, laying the foundation for subsequent crushing processes. The external fixed connection of the initial cutting mechanism 4 is a central rotating shaft 7, which serves as the core of the device's power transmission, transmitting the rotational power of the motor 41 to each crushing, screening, and grinding component to ensure their synchronous and stable operation. The bottom of the central rotating shaft 7 is equipped with a grinding mechanism 5, which is used to perform final fine grinding on the raw materials that have undergone initial cutting and screening, so that they meet the particle size standards required for pharmaceutical manufacturing. The middle external connection of the central rotating shaft 7 is equipped with a screening mechanism 9, and the outer sides of the outer shell 1 are fixedly connected with support plates 6, which are used to enhance the overall stability of the device and prevent the device from shifting or tipping over due to vibration during operation.
[0035] The preliminary cutting mechanism 4 includes a motor 41, which drives the central rotating shaft 7 to rotate at high speed, thereby driving the cutting assembly 42, vertical blades 44, and annular blades 43 to work together. The motor 41 is externally fixedly connected to the top of the fixed plate 2. The driving end of the preliminary cutting mechanism 4 is fixedly connected to the central rotating shaft 7, and the cutting assembly 42 is fixedly connected to the outside of the central rotating shaft 7. Multiple vertical blades 44 are fixedly connected to the outside of the central rotating shaft 7. The vertical blades 44 are used to form an interlaced shearing force with the annular blades 43 to further cut the pre-cut raw material into smaller pieces, thereby improving the crushing efficiency. The annular blades 43 are fixedly connected in the middle of the vertical blades 44. The annular blades 43 are used to cooperate with the vertical blades 44 to cut the raw material from multiple angles, ensuring uniform crushing effect.
[0036] The cutting assembly 42 includes a fixed connecting ring 421. The cutting assembly 42 is used to initially divide the long strip-shaped raw material to prevent it from winding around the central rotating shaft 7 and to ensure continuous operation of the equipment. The fixed connecting ring 421 is internally fixedly connected to the outside of the central rotating shaft 7. The fixed connecting ring 421 serves as a mounting carrier for the auxiliary cutting blades 422, firmly connecting them to the central rotating shaft 7 to ensure the position of the auxiliary cutting blades 422 during the cutting process. Three auxiliary cutting blades 422 are fixedly connected to the outside of the fixed connecting ring 421. The auxiliary cutting blades 422 are used to pre-cut the long strip-shaped raw material from different directions, quickly cutting it into small segments, reducing the risk of raw material winding, and increasing the contact area between the raw material and the vertical blade 44 and the ring blade 43, thereby enhancing the initial crushing effect.
[0037] Specifically, during the operation of the pharmaceutical raw material pulverizing device, the raw material enters through the feed inlet outside the fixed plate 2. The motor 41 drives the central rotating shaft 7 to rotate at high speed, driving the cutting component 42, vertical blade 44 and ring blade 43 to work together. The auxiliary cutting blade 422 first pre-cuts the long strip of raw material into small segments. The vertical blade 44 and ring blade 43 further cut it into small pieces. The pre-processed material falls to the screening mechanism 9, where it is pulverized a second time under the action of the pulverizing blade 91 driven by the central rotating shaft 7. The material that meets the particle size requirements passes through the screen 92 and continues to fall. The material that does not meet the standard is retained and pulverized again. Finally, the material enters the grinding mechanism 5 and is finely ground by the grinding disc 52 and grinding protrusions 53 until it reaches the standard required for pharmaceutical production and is discharged. This ensures the performance of the device and the safety of the medicine.
[0038] Reference Figure 1 , Figure 5 and Figure 6 The screening mechanism 9 includes two crushing blades 91. The crushing blades 91 are used to perform secondary crushing on the raw materials after the initial crushing to ensure that the particle size of the raw materials meets the requirements. At the same time, they work with the screen 92 to realize the simultaneous crushing and screening. The crushing blades 91 are fixedly connected to the middle outer side of the central rotating shaft 7. The screen 92 is slidably connected to the middle outer side of the central rotating shaft 7. The screen 92 is used to screen the crushed raw materials. Only materials with a particle size smaller than the aperture of the screen 92 can pass through, thereby ensuring the uniformity and consistency of the output particle size. The other crushing blade 91 is set directly below the screen 92. Connecting blocks 93 are fixedly connected to the outer sides of the screen 92. The connecting blocks 93 are used to connect the screen 92 and the second motor 94. Under the drive of the second motor 94, the screen 92 is driven to slide up and down to realize the adjustment of the position of the screen 92. Two sliding grooves are opened on the outer side of the outer shell 1. The connecting blocks 93 are slidably connected inside the sliding grooves of the outer shell 1.
[0039] Two motors 94 are fixedly connected to the outside of the outer casing 1. The motors 94 drive the screen 92 to move up and down through the drive connecting block 93, flexibly adjusting the distance between the screen 92 and the crushing blade 91, thereby changing the crushing particle size standard. At the same time, the dynamic displacement of the screen 92 can prevent the screen 92 from clogging. The drive end of the motor 94 is fixedly connected to the bottom of the connecting block 93. A baffle is set at the bottom of the crushing blade 91 below. A spiral guide plate 8 is rotatably connected to the outside of the central rotating shaft 7. The spiral guide plate 8 is used to guide the raw material after preliminary crushing to fall slowly along the spiral trajectory, prolonging the residence time of the raw material in the device, increasing the contact opportunity between the raw material and the crushing blade 91, and making the raw material more evenly dispersed, improving the crushing efficiency and effect. The spiral guide plate 8 is fixedly connected to the inside of the outer casing 1.
[0040] Specifically, in the screening process of the pharmaceutical raw material pulverizing device, the initially pulverized raw material falls to the screening mechanism 9. The central rotating shaft 7 drives two carbide pulverizing blades 91 to rotate at high speed, performing secondary pulverization on the material. The screen 92 is made of stainless steel woven material, and the connecting blocks 93 on both sides slide in conjunction with the external sliding groove of the outer shell 1. Driven by the motor 2 94, the position can be adjusted up and down. When the material passes through, qualified raw materials with a particle size smaller than the aperture of the screen 92 pass through the screen 92 and continue to fall, while larger particles that do not meet the standard remain above the screen 92 and are continuously pulverized by the upper pulverizing blades 91. The crushing process is further enhanced by the crushing blades 91 located directly below the screen 92, which further crush the material passing through the screen 92. The baffle at the bottom slows down the falling speed of the material to ensure thorough crushing. At the same time, the spiral guide plate 8, made of wear-resistant polytetrafluoroethylene, guides the material to slide slowly down the spiral trajectory, extending the contact time between the material and the crushing blades 91, so as to achieve simultaneous and efficient crushing and screening. The motor 94 can precisely adjust the distance between the screen 92 and the crushing blades 91, which can flexibly control the crushing particle size and prevent clogging through the dynamic displacement of the screen 92, thus ensuring the stable operation of the device.
[0041] Reference Figure 1 , Figure 3 and Figure 4The grinding mechanism 5 includes a connecting shaft 51, which serves as a transmission component between the central shaft 7 and the grinding disc 52. It stably transmits the rotational power of the central shaft 7 to the grinding disc 52, ensuring a smooth and efficient grinding process. The top of the connecting shaft 51 is fixedly connected to the outside of the central shaft 7, and the bottom of the connecting shaft 51 is fixedly connected to the grinding disc 52. The grinding disc 52 is used for the final fine grinding of the screened raw materials. Through cooperation with the bottom of the inner shell 1, the raw materials are ground into fine powder that meets pharmaceutical requirements. The bottom of the grinding disc 52 is fixedly connected to multiple grinding protrusions 53. The grinding protrusions 53 are used to increase the contact area and friction between the grinding disc 52 and the raw materials. The protruding structure squeezes, rubs, and impacts the raw materials, improving grinding efficiency and pulverization accuracy, and ensuring that the raw materials reach micron-level particle size. The bottom of the grinding protrusions 53 is slidably connected to the bottom of the inner shell 1.
[0042] Specifically, in the pharmaceutical raw material pulverizing device, the material processed by the screening mechanism 9 falls into the grinding mechanism 5. The connecting shaft 51, made of high-strength alloy steel, firmly connects the central shaft 7 and the grinding disc 52, efficiently transmitting rotational power to the grinding disc 52. The grinding disc 52 is made of medical-grade zirconia ceramic material, and multiple grinding protrusions 53 of the same material are fixed at its bottom, forming a precise grinding gap with the bottom side of the inner shell 1. When the grinding disc 52 rotates at high speed under the drive of the central shaft 7, the grinding protrusions 53 use their raised structure to squeeze, rub, and impact the material in multiple dimensions, greatly increasing the contact area and friction.
[0043] The implementation principle of this application embodiment is as follows: The drug raw material enters the device through the feed port at the top of the fixed plate 2. The motor 41 drives the central rotating shaft 7 to rotate at high speed, thereby driving the vertical blade 44 and the ring blade 43 to form an alternating shearing force. The fixed connecting ring 421 drives the auxiliary cutting blade 422 to perform the initial cutting of the long strip of raw material. The long strip is placed and wrapped around the outside of the central rotating shaft 7 to further crush the large pieces of raw material. The pre-processed material falls downward. The pre-cut material contacts the spiral guide plate 8. Under its guidance, the material moves downward along the spiral trajectory of the device. At the same time, the crushing blade 91 set in the middle outside of the central rotating shaft 7 performs secondary crushing of the material. When the particle size of the material meets the requirements, it can pass through the screen 92 and continue to fall. If the particle size is large, it remains above the screen 92 and is continuously crushed by the upper crushing blades 91. The connecting block 93 is driven by the motor 2 94, which makes the screen 92 slide up and down in the groove of the outer shell 1, changing the distance between the screen 92 and the upper and lower crushing blades 91, thereby preventing the screen 92 from clogging. Material with qualified particle size passes through the screen 92. The screened material continues to fall to the bottom of the outer shell 1. The central rotating shaft 7 drives the connecting rotating shaft 51 to drive the grinding disc 52 to rotate. The grinding protrusion 53 at the bottom of the grinding disc 52 cooperates with the bottom side of the inner shell 1 to grind and refine the material, so that the pharmaceutical raw materials meet the particle size standard required for pharmaceutical manufacturing. The bottom of the outer shell 1 uses two discharge ports, and the two sides of the outer shell 1 are fixedly connected to support plates 6 for easy discharge.
[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A pharmaceutical raw material pulverizing device, comprising a shell (1), characterized in that: A transparent inspection ring (3) is fixedly connected to the top of the outer shell (1), a fixed plate (2) is fixedly connected to the top of the transparent inspection ring (3), a preliminary cutting mechanism (4) is provided on the top of the fixed plate (2), a central rotating shaft (7) is fixedly connected to the outside of the preliminary cutting mechanism (4), a grinding mechanism (5) is provided at the bottom of the central rotating shaft (7), a screening mechanism (9) is provided in the middle outside of the central rotating shaft (7), and support plates (6) are fixedly connected to the outer sides of the outer shell (1). The preliminary cutting mechanism (4) includes a motor (41), which is externally fixedly connected to the top of the fixed plate (2). The driving end of the preliminary cutting mechanism (4) is fixedly connected to a central rotating shaft (7), and a cutting assembly (42) is fixedly connected to the outside of the central rotating shaft (7). Multiple vertical blades (44) are fixedly connected to the outside of the central rotating shaft (7), and an annular blade (43) is fixedly connected to the middle of the vertical blades (44).
2. The pharmaceutical raw material pulverizing device according to claim 1, characterized in that: The screening mechanism (9) includes two crushing blades (91), the interior of which is fixedly connected to the middle outside of the central rotating shaft (7), and a screen (92) is slidably connected to the middle outside of the central rotating shaft (7). The other crushing blade (91) is located directly below the screen (92).
3. The pharmaceutical raw material pulverizing device according to claim 1, characterized in that: The cutting assembly (42) includes a fixed connecting ring (421), the inside of which is fixedly connected to the outside of the central rotating shaft (7), and the outside of which are three auxiliary cutting blades (422).
4. A pharmaceutical raw material pulverizing device according to claim 2, characterized in that: Connecting blocks (93) are fixedly connected to the outer sides of the screen (92), and two sliding grooves are opened on the outer side of the outer shell (1). The connecting blocks (93) are slidably connected inside the sliding grooves of the outer shell (1).
5. A pharmaceutical raw material pulverizing device according to claim 4, characterized in that: Two motors (94) are fixedly connected to the outside of the outer shell (1). The driving end of the motors (94) is fixedly connected to the bottom of the connecting block (93). A baffle is provided at the bottom of the crushing blade (91) below.
6. A pharmaceutical raw material pulverizing device according to claim 1, characterized in that: The central rotating shaft (7) is rotatably connected to a spiral guide plate (8), and the spiral guide plate (8) is fixedly connected to the inside of the outer shell (1).
7. A pharmaceutical raw material pulverizing device according to claim 1, characterized in that: The grinding mechanism (5) includes a connecting shaft (51), the top of which is fixedly connected to the outside of the central shaft (7), and a grinding disc (52) is fixedly connected to the bottom of the connecting shaft (51).
8. A pharmaceutical raw material pulverizing device according to claim 7, characterized in that: The bottom of the grinding disc (52) is fixedly connected to a plurality of grinding protrusions (53), and the bottom of the grinding protrusions (53) is slidably connected to the inner bottom side of the outer shell (1).