Multi-stage grinding device for pharmaceutical raw materials

Abstract

The utility model provides a pharmaceutical raw material multi-stage grinding device, and relates to the field of medicinal material grinding equipment.The pharmaceutical raw material multi-stage grinding device comprises a grinding bin, a feeding port communicating with the interior of the grinding bin is fixedly formed in the top end of the grinding bin, a fine grinding assembly is arranged in the grinding bin, and the fine grinding assembly is used for conducting final fine grinding on medicinal materials; the top end of the fine grinding assembly is provided with the grinding assembly, the grinding assembly is used for preliminarily grinding medicinal materials, the top end of the grinding assembly is provided with the clipper assembly, the top end of the clipper assembly is provided with the cutting assembly, and the cutting assembly is used for preliminarily cutting the medicinal materials. According to the device, through the arranged pushing and shearing assembly and the pushing and grinding assembly, medicinal materials can be firstly cut by the cutting assembly and the second pushing and shearing assembly, the medicinal materials can fall into the pushing and grinding assembly after being cut to be small enough, and the medicinal materials are crashed and ground through the pushing and grinding assembly, so that the device can adapt to the medicinal materials of different sizes, and the medicinal materials are cut and ground; and the grinding efficiency and practicability of the equipment are improved, and meanwhile the grinding quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medicinal material grinding equipment, and more specifically, to a multi-stage grinding device for pharmaceutical raw materials. Background Technology

[0002] In the pharmaceutical industry, the grinding process of raw materials directly affects the dissolution rate, bioavailability and quality of the final formulation. Traditional grinding equipment usually completes the grinding process using single-stage grinding. However, such grinding equipment can usually only process medicinal materials within a specific particle size range. If the particles are too large, the medicinal materials need to be processed to the appropriate size before grinding. The preparation work is complicated and time-consuming, which reduces the grinding efficiency.

[0003] For example, the Chinese invention patent (application number: 202111009543.6) discloses a "multi-stage grinding device for medicinal materials," the description of which states that it includes a base, a first vertical plate and a second vertical plate on the top of the base, a first grinding cylinder, a second grinding cylinder and a third grinding cylinder between the first and second vertical plates, a first spiral blade inside the first grinding cylinder, a second spiral blade inside the second grinding cylinder, and a third spiral blade inside the third grinding cylinder, each of the first, second and third spiral blades having a drive wheel at one end, a first belt between the drive wheel of the first spiral blade and the drive wheel of the second spiral blade, and a second belt between the drive wheel of the second spiral blade and the drive wheel of the third spiral blade, and a motor on the base, with a third belt between the output end of the motor and the drive wheel of the third spiral blade; this invention, through the overall structural design, can perform multi-stage grinding of medicinal materials, improving the grinding effect, and has a simple structure, is easy to operate, and reduces energy consumption; the above patent can corroborate the defects of the prior art.

[0004] Therefore, we have made improvements to this and proposed a multi-stage grinding device for pharmaceutical raw materials. Utility Model Content

[0005] The purpose of this invention is to solve the problem that current grinding equipment can only process medicinal materials within a specific particle size range.

[0006] To achieve the above-mentioned objectives and improve the above-mentioned problems, this utility model provides a multi-stage grinding device for pharmaceutical raw materials, including a grinding chamber. The top of the grinding chamber is fixedly provided with a feed inlet communicating with the interior of the grinding chamber. The interior of the grinding chamber is provided with a fine grinding component for final fine grinding of the medicinal materials. The top of the fine grinding component is provided with a grinding pusher component for preliminary grinding of the medicinal materials. The top of the grinding pusher component is provided with a shearing component. The top of the shearing component is provided with a cutting component for preliminary shearing of the medicinal materials.

[0007] The grinding assembly includes a first connecting column, a second connecting column fixedly mounted on the top of the first connecting column, a plurality of first grinding blocks fixedly mounted at equal intervals on the circumference of the first connecting column, and a plurality of second grinding blocks fixedly mounted at equal intervals on the circumference of the second connecting column. The second grinding blocks are fixedly connected to the inner wall of the grinding chamber. When the first and second connecting columns rotate, the first grinding blocks push the medicinal materials, causing the medicinal materials to be crushed by the second grinding blocks.

[0008] The push-shear assembly includes a fixed column, which is fixed to the top of the second connecting column. Several fixed blocks are fixedly fixed at equal intervals on the circumference of the fixed column. Several shearing grooves are opened on the side of the fixed blocks away from the fixed column. A cutter is provided inside the shearing groove. The cutter is fixedly connected to the inner wall of the grinding chamber. The fixed column rotates and pushes the medicinal material to move through the fixed blocks, so that the medicinal material is cut by the cutter.

[0009] As a preferred technical solution of this application, the cutting assembly includes a mounting post, which is fixed to the top of a fixed post. Several shearing tubes are fixedly provided at equal intervals on the circumference of the mounting post. The shearing tubes are trapezoidal and their interiors connect to both sides.

[0010] As a preferred technical solution of this application, the fine grinding assembly includes a rotating column, the rotating column is fixedly connected to the bottom end of a first connecting column, the rotating column is rotatably connected to the bottom end inside the grinding chamber, and a grinding ring is fixedly embedded in the lower part of the inner side of the grinding chamber, with the rotating column located inside the grinding ring.

[0011] As a preferred technical solution of this application, the bottom end of the grinding chamber is provided with a discharge trough, which is connected to the top end of the grinding chamber and is located between the rotating column and the grinding ring.

[0012] As a preferred technical solution of this application, a motor is fixedly provided at the bottom of the grinding chamber, and the output end of the motor is connected to the rotating column through a reducer passing through the bottom of the grinding chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In the scheme of this application:

[0015] By incorporating a shearing and grinding component, the medicinal materials are first cut by the shearing component (the second cutting component). Once cut to a sufficiently small size, the materials fall into the grinding component, where they are crushed and ground. This allows the equipment to accommodate medicinal materials of different sizes, improving its grinding efficiency and practicality while ensuring grinding quality. It also solves the problem that existing grinding equipment can only handle medicinal materials within a specific particle size range and has poor adaptability. Attached Figure Description

[0016] Figure 1A schematic diagram of the multi-stage grinding device for pharmaceutical raw materials provided in this application;

[0017] Figure 2 A schematic diagram of the milling component in the multi-stage grinding device for pharmaceutical raw materials provided in this application;

[0018] Figure 3 A schematic diagram of the fine grinding component in the multi-stage grinding device for pharmaceutical raw materials provided in this application;

[0019] Figure 4 A schematic diagram of the push-shear assembly in the multi-stage grinding device for pharmaceutical raw materials provided in this application;

[0020] Figure 5 A schematic diagram of the structure below the grinding chamber in the multi-stage grinding device for pharmaceutical raw materials provided in this application;

[0021] Figure 6 A schematic diagram of the conical block and crushing strip in the multi-stage grinding device for pharmaceutical raw materials provided in this application.

[0022] The image shows:

[0023] 1. Grinding chamber; 11. Feed inlet; 12. Motor; 13. Reducer; 14. Discharge chute; 2. Cutting assembly; 21. Mounting column; 22. Shearing tube; 23. Conical block; 24. Crushing bar; 3. Push-shear assembly; 31. Fixing column; 32. Fixing block; 33. Shearing groove; 34. Cutter; 4. Push-grind assembly; 41. Connecting column No. 1; 42. Connecting column No. 2; 43. Grinding block No. 1; 44. Grinding block No. 2; 5. Fine grinding assembly; 51. Rotating column; 52. Grinding ring. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 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 should fall within the protection scope of the present invention.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 A multi-stage grinding device for pharmaceutical raw materials includes a grinding chamber 1, the bottom of which is supported by a support leg. The top of the grinding chamber 1 is fixedly provided with a feed inlet 11 that communicates with the interior of the grinding chamber 1. The top of the feed inlet 11 is provided with a cover. The cover can be opened to load the medicinal materials into the grinding chamber 1. After loading, the cover is closed. The grinding chamber 1 is provided with a fine grinding component 5, which is used to perform final fine grinding on the medicinal materials. The top of the fine grinding component 5 is provided with a pushing grinding component 4, which is used to perform preliminary grinding on the medicinal materials. The top of the pushing grinding component 4 is provided with a pushing shear component 3, which is used to grind the sheared medicinal materials. The top of the pushing shear component 3 is provided with a cutting component 2, which is used to perform preliminary shearing on the medicinal materials.

[0030] The grinding assembly 4 includes a first connecting column 41, a second connecting column 42 fixedly mounted on the top of the first connecting column 41, a plurality of first grinding blocks 43 fixedly mounted at equal intervals on the circumference of the first connecting column 41, and a plurality of second grinding blocks 44 fixedly mounted at equal intervals on the circumference of the second connecting column 42. The second grinding blocks 44 are fixedly connected to the inner wall of the grinding chamber 1. When the first connecting column 41 rotates, the second grinding blocks 44 do not rotate with it. When the first connecting column 41 and the second connecting column 42 rotate, the first grinding blocks 43 push the medicinal materials, causing the medicinal materials to be impacted by the second grinding blocks 44, thus crushing the medicinal materials.

[0031] The push-shear assembly 3 includes a fixed post 31, which is fixed to the top of the second connecting post 42. Several fixed blocks 32 are equidistantly fixed on the circumference of the fixed post 31. Several shearing grooves 33 are formed on the side of each fixed block 32 away from the fixed post 31. A cutter 34 is provided inside each shearing groove 33. The cutter 34 does not rotate when the fixed post 31 rotates. The cutter 34 is fixedly connected to the inner wall of the grinding chamber 1. Rotation of the fixed post 31 pushes the medicinal material through the fixed blocks 32, causing the medicinal material to be pushed... The movement contacts the cutter 34, causing the medicinal material to be cut by the cutter 34. The medicinal material is cut under the action of the shearing groove 33 and the cutter 34. During the cutting, the inner wall of the shearing groove 33 sweeps across the surface of the cutter 34, and the cutter 34 also passes through the inside of the shearing groove 33, thereby pushing away the medicinal material on the cutter 34 and also pushing away the medicinal material inside the shearing groove 33 to avoid medicinal material residue. At the same time, the medicinal material above the fixed block 32 is thrown to the edge under the action of rotational centrifugal force to prevent the medicinal material from remaining above the fixed block 32.

[0032] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the cutting assembly 2 includes a mounting column 21, which is fixed to the top of the fixed column 31. The medicinal material enters the interior of the grinding chamber 1 through the feed inlet 11 and falls onto the mounting column 21. When the mounting column 21 rotates, the medicinal material above moves towards the edge of the mounting column 21 by centrifugal force. This movement process allows the motor 12 to rotate quickly enough so that the shearing tube 22 has sufficient impact force to cut the medicinal material when it enters the side of the mounting column 21. Subsequently, the material is initially cut by the shearing tube 22. Several shearing tubes 22 are fixedly and equidistantly on the circumferential side of the mounting column 21. The shearing tube 22 is trapezoidal, and the interior of the shearing tube 22 is connected to both sides. The edges of both sides are sharpened. The trapezoidal shape at the top of the shearing tube 22 can guide the material downward. The trapezoidal structure can prevent the material from accumulating above the shearing tube 22. At the same time, it has multiple cutting edges, which can cut the medicinal material multiple times. Due to the size limitation of the fixed column 31, the medicinal material can only enter the circumferential side of the fixed column 31 after the mounting column 21 has been cut to a sufficiently small size.

[0033] Furthermore, such as Figure 2 and Figure 3 As shown, the fine grinding assembly 5 includes a rotating column 51, which is fixedly connected to the bottom end of a first connecting column 41. The rotating column 51 is rotatably connected to the bottom end inside the grinding chamber 1. A grinding ring 52 is fixedly embedded in the lower part of the inner side of the grinding chamber 1. Only when the medicinal particles are ground to a sufficiently small size can they enter the gap between the rotating column 51 and the grinding ring 52 to ensure grinding accuracy. The rotating column 51 is located inside the grinding ring 52. The rotation of the rotating column 51 causes the medicinal particles to be further ground in the gap in conjunction with the grinding ring 52.

[0034] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, the side of the fixing block 32 away from the fixing post 31 is arc-shaped, and the side of the cutter 34 near the fixing post 31 is arc-shaped.

[0035] Example 2

[0036] The multi-stage grinding apparatus for pharmaceutical raw materials provided in Example 1 has been further optimized, specifically, as follows: Figure 5 As shown, a discharge trough 14 is provided at the bottom of the grinding chamber 1. The discharge trough 14 is used to allow sufficiently fine medicinal material particles to pass through. The discharge trough 14 is connected to the top of the grinding chamber 1. The discharge trough 14 is located below the rotating column 51 and the grinding ring 52. By limiting the width of the discharge trough 14, the medicinal material particles ground between the rotating column 51 and the grinding ring 52 can only enter the interior of the discharge trough 14 if they are fine enough, thus ensuring the grinding quality.

[0037] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, a motor 12 is fixedly installed at the bottom of the grinding chamber 1. The motor 12 is used to drive the rotating column 51 to rotate. The output end of the motor 12 is connected to the rotating column 51 through the bottom of the grinding chamber 1 via a reducer 13. The reducer 13 includes, but is not limited to, a worm gear reducer. The motor 12 is started so that its output end drives the rotating column 51 to rotate through the reducer 13.

[0038] Example 3

[0039] The multi-stage grinding apparatus for pharmaceutical raw materials provided in Examples 1 and 2 has been further optimized, such as... Figure 2 , Figure 3 and Figure 4 As shown, the first grinding block 43 has inclined surfaces on both sides and top, and the second grinding block 44 has inclined surfaces on the top, bottom and sides. When the first grinding block 43 rotates around the first connecting column 41, the first grinding block 43 is located below the second grinding block 44, thus offsetting it. The medicinal material is pushed by the first grinding block 43 to impact the second grinding block 44, thus being crushed to the point that it can pass through the gap between the first grinding block 43 and the second grinding block 44.

[0040] Furthermore, such as Figure 2 and Figure 3 As shown, threads are provided on the circumferential side of the rotating column 51 and the inside of the grinding ring 52. The threads on the rotating column 51 and the grinding ring 52 do not contact each other. When the rotating column 51 rotates, it continuously guides the medicinal material downward. During the guiding process, the medicinal material continuously passes through the threads on the grinding ring 52, thereby finely grinding the medicinal material. While guiding downward, it can also assist the medicinal material to be discharged through the discharge trough 14.

[0041] Furthermore, such as Figure 2 and Figure 3 As shown, the circumferential side of the first connecting column 41 is inclined, so that the finer medicinal materials will fall to a lower position so that they fall between the rotating column 51 and the grinding ring 52, preventing them from being mixed with the coarser medicinal materials and thus being stopped and slowed down.

[0042] Furthermore, such as Figure 6 As shown, a conical block 23 is fixedly provided at the top of the mounting column 21. When the top of the mounting column 21 has the conical block 23, the medicinal material no longer falls into the top of the mounting column 21, but falls into the top of the conical block 23. It is guided to the edge by the inclined surface to prevent the medicinal material from being left on the top and unable to be processed. Several breaking strips 24 are fixedly provided at equal intervals on the circumference of the conical block 23. When the mounting column 21 rotates, the larger medicinal materials are repeatedly ground by the conical block 23, and the larger medicinal materials are ground down to a smaller size before falling into the side of the mounting column 21, so as to accommodate larger medicinal materials.

[0043] The usage process of the multi-stage grinding device for pharmaceutical raw materials provided by this utility model is as follows:

[0044] When it is necessary to cut and grind medicinal materials, the medicinal materials are put into the grinding chamber 1 through the feed port 11. After the materials are placed, the lid is closed, and a container for catching the medicinal materials is placed under the discharge trough 14. Then, the motor 12 is started and the rotating column 51 is driven to rotate through the reducer 13. The rotation of the rotating column 51 causes the first connecting column 41, the second connecting column 42, the fixed column 31, and the mounting column 21 to rotate as well. The medicinal materials are continuously ground by the crushing strip 24. After being ground down, they fall to the side of the mounting column 21 and are initially cut by the rotating shearing tube 22. When the medicinal materials are cut to a size that can enter the side of the fixed column 31, they fall into the side of the fixed column 31. Then, the fixed block 32 pushes the medicinal materials, causing them to collide with the cutter 34. Under the shearing action of the shearing groove 33 and the cutter 34, the medicinal materials are divided.

[0045] When the medicinal material is cut small enough, it falls to the side of the second connecting post 42 and the first connecting post 41. At this time, the first grinding block 43 pushes the medicinal material to collide with the second grinding block 44, thereby crushing the medicinal material. The medicinal material is crushed to a size that allows it to enter the gap between the second grinding block 44 and the first grinding block 43, and is continuously ground between the first grinding block 43 and the second grinding block 44. When the medicinal material is ground to a size that is large enough, it enters the space between the rotating column 51 and the grinding ring 52. The threads on the side of the rotating column 51 and the inner wall of the grinding ring 52 continuously guide the medicinal material downward. During the guiding process, the medicinal material is continuously finely ground by passing through the threads on the grinding ring 52. While being guided downward, the medicinal material is also assisted in being discharged through the discharge trough 14. When it is ground to a size that allows it to enter the discharge trough 14, it falls into the container below through the discharge trough 14 and is caught by the container.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A multi-stage grinding device for pharmaceutical raw materials, characterized by, The device includes a grinding chamber (1), with a feed inlet (11) fixedly provided at the top of the grinding chamber (1) and communicating with the inside of the grinding chamber (1). The grinding chamber (1) is provided with a fine grinding component (5), which is used to perform the final fine grinding of the medicinal materials. The top of the fine grinding component (5) is provided with a grinding pusher component (4), which is used to perform preliminary grinding of the medicinal materials. The top of the grinding pusher component (4) is provided with a shear pusher component (3), and the top of the shear pusher component (3) is provided with a cutting component (2), which is used to perform preliminary cutting of the medicinal materials. The grinding assembly (4) includes a first connecting column (41), a second connecting column (42) is fixedly provided at the top of the first connecting column (41), a number of first grinding blocks (43) are fixedly provided at equal intervals on the circumferential side of the first connecting column (41), and a number of second grinding blocks (44) are fixedly provided at equal intervals on the circumferential side of the second connecting column (42). The second grinding blocks (44) are fixedly connected to the inner wall of the grinding chamber (1). When the first connecting column (41) and the second connecting column (42) rotate, the first grinding block (43) pushes the medicinal material, so that the medicinal material is crushed by the second grinding block (44). The push-shear assembly (3) includes a fixed column (31), which is fixed to the top of the second connecting column (42). Several fixed blocks (32) are fixedly fixed at equal intervals on the circumference of the fixed column (31). Several shearing grooves (33) are opened on the side of the fixed block (32) away from the fixed column (31). A cutter (34) is provided inside the shearing groove (33). The cutter (34) is fixedly connected to the inner wall of the grinding chamber (1). The fixed column (31) rotates and pushes the medicinal material to move through the fixed blocks (32), so that the medicinal material is cut by the cutter (34).

2. The multi-stage grinding device for pharmaceutical raw materials according to claim 1, characterized in that, The cutting assembly (2) includes a mounting post (21), which is fixed to the top of a fixing post (31). Several shearing tubes (22) are fixedly arranged at equal intervals on the circumference of the mounting post (21). The shearing tubes (22) are trapezoidal and the interior of the shearing tubes (22) connects the two sides.

3. The multi-stage grinding device for pharmaceutical raw materials according to claim 2, characterized in that, The fine grinding assembly (5) includes a rotating column (51), which is fixedly connected to the bottom end of a first connecting column (41). The rotating column (51) is rotatably connected to the bottom end inside the grinding chamber (1). A grinding ring (52) is fixedly embedded in the lower part of the inner side of the grinding chamber (1), and the rotating column (51) is located inside the grinding ring (52).

4. The multi-stage grinding device for pharmaceutical raw materials according to claim 3, characterized in that, The bottom end of the grinding chamber (1) is provided with a discharge trough (14), which is connected to the top end of the grinding chamber (1). The discharge trough (14) is located between the rotating column (51) and the grinding ring (52).

5. The multi-stage grinding device for pharmaceutical raw materials according to claim 4, characterized in that, A motor (12) is fixedly installed at the bottom of the grinding chamber (1). The output end of the motor (12) is connected to the rotating column (51) through the bottom of the grinding chamber (1) via a reducer (13).

6. The multi-stage grinding device for pharmaceutical raw materials according to claim 5, characterized in that, The first grinding block (43) has inclined surfaces on both sides and top, and the second grinding block (44) has inclined surfaces on the upper and lower ends and both sides.

7. The multi-stage grinding device for pharmaceutical raw materials according to claim 5, characterized in that, The side of the fixing block (32) away from the fixing post (31) is arc-shaped, and the side of the cutter (34) near the fixing post (31) is arc-shaped.

8. A multi-stage grinding device for pharmaceutical raw materials according to claim 5, characterized in that, The circumferential side of the rotating column (51) and the interior of the grinding ring (52) are both threaded.

9. A multi-stage grinding device for pharmaceutical raw materials according to claim 5, characterized in that, The circumferential side of the No. 1 connecting column (41) is inclined.

10. A multi-stage grinding device for pharmaceutical raw materials according to claim 5, characterized in that, The top of the mounting column (21) is fixedly provided with a conical block (23), and a number of breaking strips (24) are fixedly provided at equal intervals on the circumference of the conical block (23).

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