Tablet medicine grinding device

Abstract

The utility model discloses a tablet medicine grinding device, including shell, grinding mechanism and collection mechanism, the left and right two sides inner wall of shell all are fixedly connected with the reinforcing rib of distribution, and the front end between reinforcing rib is fixedly connected with the front side plate, and the rear side inner wall of shell is fixedly connected with the feed pipeline, the grinding mechanism includes cylinder, outer gear ring, gear, bearing seat and cylinder cover, and the cylinder is arranged in the inside of shell, and the front end fixedly connected with cylinder cover of cylinder, and the whole inside placed with steel ball of cylinder and cylinder cover, and the whole front and back two ends of cylinder and cylinder cover are all conical, and the middle part fixedly covers and is equipped with the outer gear ring of cylinder, and the bottom wall fixedly connected with bearing seat of distribution of shell.

Description

Technical Field

[0001] This utility model relates to the field of pharmacokinetic research technology, specifically a tablet drug grinding device. Background Technology

[0002] Pharmaceutical grinding is the process of physically pulverizing drug raw materials or formulations into fine powders, aiming to improve drug solubility, bioavailability, and formulation homogeneity. This process requires selecting appropriate equipment based on the drug's properties (such as chemical stability and hardness), such as ball mills, air jet mills, or ultrafine / nano-grinding mills. Traditional grinding uses mortars and pestles and is suitable for conventional formulations; modern technologies such as cryogenic grinding can prevent the degradation of heat-sensitive components, while nano-scale pulverization can optimize the absorption of poorly soluble drugs.

[0003] In the prior art, Chinese patent CN213528938U discloses a tablet grinding device that is driven by an electric motor. The rotating drum rotates circumferentially relative to the grinding rod to realize the automatic grinding and discharge of tablets. It has the advantages of saving labor and time. However, the size of the powder particles obtained is limited by the size of the powder leakage hole. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a tablet medicine grinding device that grinds tablet medicines by ball milling and simultaneously sucks away floating tablet medicine particles by negative pressure, resulting in a finer powder. At the same time, it can continuously add material to ensure grinding efficiency, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tablet grinding device, comprising a shell, a grinding mechanism, a collecting mechanism, and a control switch; The inner walls of the left and right sides of the outer shell are fixedly connected with vertically distributed reinforcing ribs, and the front ends of the reinforcing ribs are fixedly connected with a front side plate. The inner wall of the rear side of the outer shell is fixedly connected with a feed pipe. The grinding mechanism includes a cylinder, an external gear ring, a gear, a bearing seat, and a cylinder cover. The cylinder is located inside the outer shell. The cylinder cover is fixedly connected to the front end of the cylinder. A steel ball is placed inside the cylinder and the cylinder cover. Both the front and rear ends of the cylinder and the cylinder cover are conical. An external gear ring is fixedly fitted in the middle of the cylinder. Bearing seats distributed in the front and rear are fixedly connected to the bottom wall of the outer shell. A rotating shaft is rotatably connected between the two bearing seats. A gear is fixedly fitted in the middle of the rotating shaft. The gear meshes with the external gear ring. The lower end of the feed pipe is rotatably connected to the middle of the rear end of the cylinder. The collection mechanism includes a connecting pipe and a collection cylinder. The collection cylinder is fixedly connected to the rear side of the front side plate. The outer arc surface of the collection cylinder is provided with a connecting pipe, and the lower end of the connecting pipe is rotatably connected to the middle of the cylinder cover.

[0006] Furthermore, the top and bottom walls of the outer shell are rotatably connected to symmetrically distributed limiting wheels via rotating seats. The outer arc surface of the cylinder is fixedly fitted with symmetrically distributed limiting rings. Each limiting ring has a limiting groove in the middle. The outer arc surface of the limiting wheel is slidably connected to the inner arc surface of the vertically adjacent limiting groove, thereby realizing the rotation of the cylinder.

[0007] Furthermore, the grinding mechanism also includes a motor base and a motor. The motor base is fixedly connected to the front end of the bottom wall of the outer shell, and the motor is fixedly connected to the front side of the motor base. The output shaft of the motor is fixedly connected to the front end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the control switch to drive the cylinder to rotate.

[0008] Furthermore, the collection mechanism also includes a filter element and a connecting seat. The connecting seat is located at the upper end of the collection cylinder, and the lower end of the connecting seat is fixedly connected to a uniformly distributed filter element. The middle part of the connecting seat is connected to the air inlet of an external air pump to protect the external air pump.

[0009] Furthermore, the collection mechanism also includes buckles, which are uniformly and fixedly connected to the upper end of the outer arc surface of the collection tube. The outer arc surface of the connecting seat is fixedly connected with evenly distributed tabs, and the buckle rings are respectively engaged with the upper ends of the vertically adjacent tabs to fix the connecting seat.

[0010] Furthermore, a material plate is provided in the middle of the rear side of the front plate, and a ceramic bowl is provided at the upper end of the material plate. The ceramic bowl is threadedly connected to the lower end of the collecting cylinder. The material plate is located above the two reinforcing ribs at the lower end to collect the medicine powder.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The rotation of the cylinder and the cylinder cover as a whole drives the steel ball inside the cylinder to move, thereby grinding the tablet medicine. Some small particles of the ground tablet medicine float in the cylinder. An external air pump evacuates the collection cylinder. After the floating tablet medicine particles are sucked into the collection cylinder, they sink into the ceramic bowl due to the combined effects of centrifugal force and gravity, resulting in smaller and finer powder particles. 2. New tablets can be added to the cylinder at any time through the feed pipe without stopping the machine, ensuring the grinding efficiency of the tablets. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0013] In the diagram: 1. Outer shell; 2. Grinding mechanism; 21. Cylinder; 22. External gear ring; 23. Gear; 24. Bearing seat; 25. Motor seat; 26. Cylinder cover; 27. Motor; 3. Collection mechanism; 31. Connecting pipe; 32. Collection cylinder; 33. Filter element; 34. Connecting seat; 35. Buckle; 4. Front side plate; 5. Material plate; 6. Ceramic bowl; 7. Reinforcing rib; 8. Feed pipe; 9. Limiting ring; 10. Limiting wheel; 11. Control switch. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-2 This embodiment provides a technical solution: a tablet grinding device, including a shell 1, a grinding mechanism 2, a collecting mechanism 3 and a control switch 11; the inner walls of the left and right sides of the shell 1 are fixedly connected with vertically distributed reinforcing ribs 7, the front ends of the reinforcing ribs 7 are fixedly connected with a front side plate 4, and the inner wall of the rear side of the shell 1 is fixedly connected with a feeding pipe 8.

[0016] The grinding mechanism 2 includes a cylinder 21, an external gear ring 22, a gear 23, a bearing seat 24, and a cylinder cover 26. The cylinder 21 is located inside the outer shell 1. The cylinder cover 26 is fixedly connected to the front end of the cylinder 21. A steel ball is placed inside the integral body formed by the cylinder 21 and the cylinder cover 26. Both the front and rear ends of the integral body formed by the cylinder 21 and the cylinder cover 26 are conical. The external gear ring 22 is fixedly sleeved in the middle of the cylinder 21. The bearing seats 24 distributed front and rear are fixedly connected to the bottom wall of the outer shell 1. A rotating shaft is rotatably connected between the two bearing seats 24. The middle of the rotating shaft is fixedly sleeved. A gear 23 is provided, which meshes with an external gear ring 22. The lower end of the feed pipe 8 is rotatably connected to the middle of the rear end of the cylinder 21 (the horizontal pipe at the lower end of the feed pipe 8 is rotatably connected to the middle of the rear end of the cylinder 21). The left and right ends of the top and bottom walls of the outer shell 1 are rotatably connected to symmetrically distributed limiting wheels 10 through rotating seats. The outer arc surface of the cylinder 21 is fixedly fitted with symmetrically distributed limiting rings 9. Each limiting ring 9 has a limiting groove in the middle. The outer arc surface of the limiting wheel 10 is slidably connected to the inner arc surface of the vertically adjacent limiting groove.

[0017] The grinding mechanism 2 also includes a motor base 25 and a motor 27. The motor base 25 is fixedly connected to the front end of the bottom wall of the housing 1. The motor 27 is fixedly connected to the front side of the motor base 25. The output shaft of the motor 27 is fixedly connected to the front end of the rotating shaft. The input end of the motor 27 is electrically connected to the output end of the control switch 11.

[0018] The collection mechanism 3 includes a connecting pipe 31 and a collection cylinder 32. The collection cylinder 32 is fixedly connected to the rear side of the front side plate 4. The outer arc surface of the collection cylinder 32 is provided with the connecting pipe 31. The lower end of the connecting pipe 31 is rotatably connected to the middle of the cylinder cover 26 (the horizontal pipe at the lower end of the connecting pipe 31 is rotatably connected to and communicates with the middle of the cylinder cover 26). The collection mechanism 3 also includes a filter element 33 and a connecting seat 34. The connecting seat 34 is located at the upper end of the collection cylinder 32. The lower end of the connecting seat 34 is fixedly connected with a uniformly distributed filter element 33. The middle of the connecting seat 34 is connected to the air inlet of an external air pump.

[0019] The collection mechanism 3 also includes a buckle 35, which is uniformly fixed to the upper end of the outer arc surface of the collection cylinder 32. The outer arc surface of the connecting seat 34 is fixedly connected with evenly distributed tongues. The buckle rings of the buckle 35 are respectively snapped onto the upper ends of the vertically adjacent tongues. The rear side of the front side plate 4 is provided with a material plate 5. The upper end of the material plate 5 is provided with a ceramic bowl 6. The ceramic bowl 6 is threaded to the lower end of the collection cylinder 32. The material plate 5 is located on the upper end of the two reinforcing ribs 7 at the lower end.

[0020] The working principle of this utility model is as follows: The tablets to be ground are fed into the feed pipe 8. The horizontal pipe at the lower end of the feed pipe 8 and the horizontal pipe at the lower end of the connecting pipe 31 are both provided with polytetrafluoroethylene (PTFE) pressure rings. The relative inner sides of the two PTFE pressure rings are respectively attached to the front and rear sides of the whole composed of the cylinder 21 and the cylinder cover 26 to prevent leakage. The front and rear ends of the whole composed of the cylinder 21 and the cylinder cover 26 are conical to prevent unground tablets from remaining inside the feed pipe 8 or the connecting pipe 31. Motor 27 is turned on by control switch 11. The output shaft of motor 27 drives gear 23 to rotate. Gear 23 drives the entire assembly consisting of limit wheel 10, external gear ring 22, cylinder 21 and cylinder cover 26 to rotate between limit wheels 10. The limit groove of limit ring 9 is a triangular groove. The edges of limit wheels 10 are all located inside vertically adjacent limit grooves, realizing the limiting and stable rotation of cylinder 21. The steel balls inside cylinder 21 rise and fall with the rotation of cylinder 21, crushing the tablets. The small particles in the crushed tablets float inside cylinder 21. An external air pump draws air through connecting seat 34, creating negative pressure inside collection cylinder 32. The floating small particles are sucked into connecting pipe 31. The upper air inlet of connecting pipe 31 is offset from the collection cylinder. The central axis of the collecting cylinder 32 causes the airflow to form a high-speed rotating airflow after entering the collecting cylinder 32. During the rotation, the tablet particles are thrown against the cylinder wall of the collecting cylinder 32 due to centrifugal force. After losing kinetic energy, they sink, while the air rises towards the center. The volume of the collecting cylinder 32 is much larger than that of the connecting pipe 31, and the airflow speed drops sharply. The tablet particles sink naturally due to gravity, thus collecting the tablet particles. The tablet particles fall into the ceramic bowl 6. New tablets are added to the cylinder 21 in an appropriate amount according to the tablet dust collected in the ceramic bowl 6. The filter element 33 prevents the tablet particles from being sucked into the external air pump. When replacing the filter element 33, open the buckle 35 and remove the connecting seat 34 to replace the whole assembly consisting of the connecting seat 34 and the filter element 33. After the machine is stopped, remove the ceramic bowl 6 from the lower end of the collecting cylinder 32 through the opening of the material plate 5, and scrape off the powder adhering to the inner wall of the collecting cylinder 32 to avoid waste. The material can be taken out by removing the cylinder cover 26 (the cylinder cover 26 is connected to the front end of the cylinder body 21 by bolts) and cleaning the inside of the cylinder body 21.

[0021] It is worth noting that the motor 27 disclosed in the above embodiments can be a 60TM-01330F5-C motor, and the control switch 11 is provided with a switch button corresponding to the motor 27 for controlling its switching operation.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tablet grinding apparatus, characterized in that: It includes a housing (1), a grinding mechanism (2), a collecting mechanism (3), and a control switch (11); The inner walls of the left and right sides of the outer shell (1) are fixedly connected with vertically distributed reinforcing ribs (7), and the front ends of the reinforcing ribs (7) are fixedly connected with front side plates (4). The inner wall of the rear side of the outer shell (1) is fixedly connected with a feed pipe (8). The grinding mechanism (2) includes a cylinder (21), an external gear ring (22), a gear (23), a bearing seat (24), and a cylinder cover (26). The cylinder (21) is located inside the outer shell (1). The cylinder cover (26) is fixedly connected to the front end of the cylinder (21). A steel ball is placed inside the cylinder (21) and the cylinder cover (26). Both ends of the cylinder (21) and the cylinder cover (26) are conical. An external gear ring (22) is fixedly fitted in the middle of the cylinder (21). Bearing seats (24) distributed in the front and rear are fixedly connected to the bottom wall of the outer shell (1). A rotating shaft is rotatably connected between the two bearing seats (24). A gear (23) is fixedly fitted in the middle of the rotating shaft. The gear (23) meshes with the external gear ring (22). The lower end of the feed pipe (8) is rotatably connected to the middle of the rear end of the cylinder (21). The collection mechanism (3) includes a connecting pipe (31) and a collection cylinder (32). The collection cylinder (32) is fixedly connected to the rear side of the front side plate (4). The outer arc surface of the collection cylinder (32) is provided with a connecting pipe (31). The lower end of the connecting pipe (31) is rotatably connected to the middle part of the cylinder cover (26).

2. The tablet grinding apparatus according to claim 1, characterized in that: The top and bottom walls of the outer shell (1) are rotatably connected to symmetrically distributed limiting wheels (10) via rotating seats. The outer arc surface of the cylinder (21) is fixedly fitted with symmetrically distributed limiting rings (9). Each limiting ring (9) has a limiting groove in the middle. The outer arc surface of the limiting wheel (10) is slidably connected to the inner arc surface of the vertically adjacent limiting groove.

3. The tablet grinding apparatus according to claim 1, characterized in that: The grinding mechanism (2) also includes a motor base (25) and a motor (27). The motor base (25) is fixedly connected to the front end of the bottom wall of the outer shell (1). The motor (27) is fixedly connected to the front side of the motor base (25). The output shaft of the motor (27) is fixedly connected to the front end of the rotating shaft. The input end of the motor (27) is electrically connected to the output end of the control switch (11).

4. The tablet grinding apparatus according to claim 1, characterized in that: The collection mechanism (3) also includes a filter element (33) and a connecting seat (34). The connecting seat (34) is located at the upper end of the collection cylinder (32). The lower end of the connecting seat (34) is fixedly connected with a uniformly distributed filter element (33). The middle part of the connecting seat (34) is connected to the air inlet of an external air pump.

5. A tablet grinding apparatus according to claim 4, characterized in that: The collecting mechanism (3) also includes a buckle (35), which is uniformly fixedly connected to the upper end of the outer arc surface of the collecting tube (32). The outer arc surface of the connecting seat (34) is fixedly connected with evenly distributed tabs, and the buckle rings of the buckle (35) are respectively snapped onto the upper end of the vertically adjacent tabs.

6. The tablet grinding apparatus according to claim 1, characterized in that: The front side plate (4) has a material plate (5) in the middle of the rear side. A ceramic bowl (6) is provided at the upper end of the material plate (5). The ceramic bowl (6) is threaded to the lower end of the collecting cylinder (32). The material plate (5) is located at the upper end of the two reinforcing ribs (7) at the lower end.

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