A solid dosage form granulator
By designing a solid dosage form granulator, we have achieved flexible assembly and self-cleaning of the equipment, solved the problems of mobility and dust pollution of traditional equipment, improved granulation efficiency and particle uniformity, and reduced production costs.
Patent Information
- Application Number
- CN202521203168.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-07-17
- Estimated Expiration
- 2035-06-12
Smart Images
Figure CN224507242U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of granulation machine technology, and more specifically, to a solid dosage form granulation machine. Background Technology
[0002] In the solid dosage form production process, the granulation stage plays a crucial role in ensuring product quality. Traditional solid dosage form granulation equipment is mostly fixed, with poor mobility, making it difficult to flexibly adapt to different production scenarios. This causes many inconveniences in production layout and equipment allocation. Moreover, the structural design is relatively crude, separating granulation and screening functions, requiring materials to be transferred through multiple processes. This not only increases the operation process but also easily introduces impurities, reduces production efficiency, and cannot guarantee the uniformity of granulated particle size, affecting the quality of subsequent formulation molding. During the granulation process, materials easily adhere to the inner wall of the equipment, making cleaning difficult. This not only increases downtime for cleaning but also may cause cross-contamination due to residual materials, threatening product quality and safety. At the same time, the dust generated during the granulation process is difficult to collect effectively, and a large amount of dust permeates the production environment, not only endangering the health of operators but also potentially causing safety hazards due to dust accumulation, failing to meet environmental protection and safe production standards. In view of this, we propose a solid dosage form granulator. Utility Model Content
[0003] 1. Technical problems to be solved
[0004] The purpose of this application is to provide a solid dosage form granulator that solves the technical problems mentioned in the background art. The granulator has a reasonable overall design, is flexible in use, and is easy to assemble. The material in the granulation cylinder is formed into granules by the granulation knife assembly and the conical granulation cover, and then diffuses and falls towards the inner circumference of the granulation cylinder. The strong impact of the cleaning knife causes secondary tumbling, making the granules more uniform. The cleaning knife also automatically cleans the inner wall of the granulation cylinder, reducing production time and labor costs, improving the granulation efficiency of the machine, and enabling the granulation of granules to be screened. Larger granules can be recycled and processed, and dust can be recovered and filtered, reducing pollution emissions.
[0005] 2. Technical Solution
[0006] This application provides a solid dosage form granulator, comprising:
[0007] The material receiving hopper is detachably equipped with a sizing cylinder. A collection bucket is detachably installed at the bottom of the sizing cylinder. A conical sizing cover is fixedly positioned at the top of the sizing cylinder. A sizing knife assembly is rotatably installed inside the conical sizing cover. Three cleaning knives are rotatably installed inside the sizing cylinder and outside the conical sizing cover. A screening screen is fixedly installed inside the collection bucket. An agitator is rotatably installed on the upper surface of the screening screen. A discharge plug is threadedly installed at the bottom of the collection bucket. A drive motor is fixedly installed at the bottom of the collection bucket. The output shaft of the drive motor is driven by a drive rod. The drive rod is driven by the sizing knife assembly, the cleaning knives, and the agitator.
[0008] The equipment box contains a dust removal mechanism, which includes a dust pump, a purification box, and a dust suction pipe. The dust pump and the purification box are fixedly installed inside the equipment box and connected by a pipe. The dust suction pipe is welded to the granulation cylinder, and the granulation cylinder is connected to the purification box through the dust suction pipe.
[0009] By adopting the above technical solution, this pelletizer uses a receiving hopper to receive the material to be pelletized. A pelletizing cylinder and a collecting hopper are sequentially installed at the bottom of the receiving hopper. To prevent material adhesion on the pelletizing cylinder, the pelletizing cylinder is designed as an I-shaped cylinder, and a conical pelletizing cover is detachably installed at the upper end of the pelletizing cylinder. A pelletizing knife assembly is installed inside the conical pelletizing cover, and a cleaning knife is installed inside the pelletizing cylinder and outside the conical pelletizing cover. A drive motor is fixedly installed at the bottom of the collecting hopper, and the drive rod connected to the drive motor can simultaneously drive the pelletizing knife assembly, the cleaning knife, and the stirring blade to rotate. Thus, the material forms granules at the conical pelletizing cover and diffuses and falls towards the inner circumference of the pelletizing cylinder. The strong impact of the cleaning knife further granulates the material. The repeated turning makes the particles more uniform and automatically cleans the inner wall of the granulation cylinder. The particles fall onto the screening screen plate and are evenly stirred by the stirring blades, realizing the granulation process. Larger particles are trapped on the upper part of the screening screen plate. Since this part of the material cannot enter the next stage of the production process, in order to avoid waste, the trapped material inside can be poured out by disassembling the collection bucket. The dust generated during granulation can be absorbed and filtered by a dust removal mechanism consisting of a dust pump, a purification box, and a dust suction pipe, reducing dust emission pollution. The overall design is reasonable, easy to assemble, and can achieve self-cleaning, reducing production time and labor costs and improving the granulation efficiency of the machine.
[0010] Optionally, the connection between the suction pipe and the pellet cylinder is provided with a multi-hole dust discharge port, which is evenly distributed in a circular array.
[0011] By adopting the above technical solution, the granulation cylinder is equipped with a multi-hole dust discharge port that matches the dust suction pipe, and the multi-hole dust discharge port can only allow fine dust to pass through.
[0012] Optionally, both ends of the pelletizing cylinder are fixedly provided with limiting rings, and clamps can be detachably installed between the pelletizing cylinder and the receiving hopper and the collecting bucket for limiting.
[0013] By adopting the above technical solution, clamps are provided at the connection ends of the pelletizing cylinder, the receiving hopper, and the collecting bucket. The clamps are sleeved on the outside of the limiting ring, so that the pelletizing cylinder, the receiving hopper, and the collecting bucket can be stably limited and fixed. Furthermore, the pelletizing cylinder, the receiving hopper, and the collecting bucket can be easily disassembled by removing the clamps.
[0014] Optionally, the upper end of the conical granulation cover is fixedly provided with an end ring, which is embedded in the limiting ring at the upper end of the granulation cylinder, and the conical granulation cover is uniformly provided with a plurality of granulation holes along the circumference.
[0015] By adopting the above technical solution, when installing the conical pelletizing cover, the conical pelletizing cover is inserted into the pelletizing cylinder, and the end ring is embedded in the limiting ring at the upper end of the pelletizing cylinder. The end ring is limited between the receiving hopper and the limiting ring at the upper end of the pelletizing cylinder by the limiting and fixing clamp of the pelletizing cylinder and the receiving hopper.
[0016] Optionally, the sizing knife assembly includes a sizing knife head and three T-shaped sizing knives. The sizing knife head and the T-shaped sizing knives are fixedly connected, and the three T-shaped sizing knives are evenly arranged along the circumference of the sizing knife head. The T-shaped sizing knives are fitted and connected to the inner wall of the conical sizing cover, and the sizing knife head is threadedly connected to the upper end of the drive rod.
[0017] By adopting the above technical solution, the drive rod extends into the interior of the conical granulator cover. The granulator head is threadedly connected to the drive rod, so that the drive rod can drive the granulator head to rotate. The granulator head drives three T-shaped granulators to rotate at high speed along the inner wall of the conical granulator cover, which can granulate the material.
[0018] Optionally, a connecting rod is fixed between the cleaning blade and the drive rod, the three cleaning blades are evenly distributed along the circumference of the drive rod, the cleaning blades have an arc-shaped structure, and the cleaning blades are attached to the inner wall of the granulation cylinder.
[0019] By adopting the above technical solution, the drive rod is fixedly connected to the cleaning blade through the connecting rod. The high-speed rotating arc-shaped cleaning blade causes the falling granular material to impact upwards again, thereby causing the granular material to tumble again and making the granular material more evenly distributed. In addition, the cleaning blade can also automatically clean the inner wall of the entire granulation cylinder.
[0020] Optionally, the bottom surface of the equipment box is fixedly provided with two base plates, each of which is rotatably mounted with a self-locking universal wheel at both ends, and the upper surface of the equipment box is fixedly provided with a handle.
[0021] By adopting the above technical solution, the equipment box is equipped with four self-locking casters that rotate on two base plates, which can be easily pushed and moved to a new position, improving the flexibility of equipment use.
[0022] Optionally, the dust discharge pipe of the dust pump extends to the outside of the equipment box, and two filter plates are detachably installed inside the purification box.
[0023] By adopting the above technical solution, the dust pump, as the power source for dust collection, continuously draws up floating and dust particles from the granulation cylinder. After being deeply filtered by the two filter plates in the purification box, the floating and dust particles are discharged through the dust outlet pipe of the dust pump, which greatly reduces the amount of dust emissions and the phenomenon of dust pollution.
[0024] 3. Beneficial effects
[0025] One or more technical solutions provided in this application have at least the following technical effects or advantages:
[0026] 1. This pelletizer, equipped with a movable equipment box, is easy to move and use. It is also easy to assemble. The drive motor drives the drive rod to rotate, which simultaneously drives the pelletizing blade assembly, cleaning blade, and stirring blade to rotate. The material is formed into granules by the pelletizing blade assembly and the conical pelletizing cover inside the pelletizing cylinder, and then diffuses and falls towards the inner circumference of the pelletizing cylinder. The strong impact of the cleaning blade causes secondary tumbling, making the granules more uniform. The cleaning blade also automatically cleans the inner wall of the pelletizing cylinder, reducing production time and labor costs and improving the pelletizing efficiency of the machine.
[0027] 2. When granular material falls onto the screening screen, it is uniformly agitated by the stirring blades to achieve the screening process, so that larger particles are intercepted and can be poured out by disassembling the collection bucket for further processing. In addition, the dust generated during the granulation process can be absorbed and filtered to reduce dust emission pollution. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of a solid dosage form granulator disclosed in a preferred embodiment of this application;
[0029] Figure 2 This is a schematic diagram of the equipment box and dust removal mechanism of a solid dosage form granulator disclosed in a preferred embodiment of this application;
[0030] Figure 3 This is a partial exploded and partial cross-sectional structural diagram of a solid dosage form granulator disclosed in a preferred embodiment of this application;
[0031] Figure 4 A solid dosage form granulator disclosed in a preferred embodiment of this application Figure 3 Enlarged structural diagram at point A in the middle;
[0032] Figure 5 A solid dosage form granulator disclosed in a preferred embodiment of this application Figure 3 Enlarged structural diagram at point B;
[0033] The following are the labels in the diagram: 1. Receiving hopper; 2. Granulating cylinder; 21. Multi-hole dust outlet; 22. Limiting ring; 23. Conical granulating cover; 231. Granulating hole; 232. End ring; 3. Collection bucket; 31. Screening screen; 32. Discharge plug; 4. Drive motor; 42. Drive rod; 43. Connecting rod; 44. Cleaning knife; 45. Granulating knife head; 46. T-shaped granulating knife; 47. Mixing blade; 5. Equipment box; 51. Base plate; 52. Self-locking casters; 53. Handle; 6. Dust removal mechanism; 61. Dust pump; 62. Purification box; 63. Filter plate; 64. Dust suction pipe; 7. Clamping hoop. Detailed Implementation
[0034] The present application will be further described in detail below with reference to the accompanying drawings.
[0035] Reference Figures 1 to 5 This application provides a solid dosage form granulator, comprising:
[0036] The receiving hopper 1 is detachably equipped with a sizing cylinder 2. A collecting bucket 3 is detachably equipped at the bottom of the sizing cylinder 2. A conical sizing cover 23 is fixedly positioned at the top of the sizing cylinder 2. A sizing knife assembly is rotatably installed inside the conical sizing cover 23. Three cleaning knives 44 are rotatably installed inside the sizing cylinder 2 and outside the conical sizing cover 23. A screening screen 31 is fixedly installed inside the collecting bucket 3. An agitator 47 is rotatably installed on the upper surface of the screening screen 31. A discharge plug 32 is threadedly installed at the bottom of the collecting bucket 3. A drive motor 4 is fixedly installed at the bottom of the collecting bucket 3. The output shaft of the drive motor 4 is driven by a drive rod 42. The drive rod 42 is driven by the sizing knife assembly, the cleaning knives 44, and the agitator 47.
[0037] Equipment box 5 houses a dust removal mechanism 6, which includes a dust pump 61, a purification box 62, and a dust suction pipe 64. The dust pump 61 and purification box 62 are fixedly installed inside the equipment box 5 and connected via pipes. The dust suction pipe 64 is welded to the granulating cylinder 2, and the granulating cylinder 2 is connected to the purification box 62 via the dust suction pipe 64. This granulator uses a receiving hopper 1 to receive the material to be granulated. The granulating cylinder 2 and a collection bucket 3 are sequentially installed at the bottom of the receiving hopper 1. To prevent material adhesion on the granulating cylinder 2, the granulating cylinder 2 is designed as an I-shaped cylinder, and a conical granulating cover 23 is detachably installed at the upper end of the granulating cylinder 2. A granulating knife assembly is installed inside the conical granulating cover 23, and a cleaning knife 44 is installed inside the granulating cylinder 2 and outside the conical granulating cover 23. A drive motor 4 is fixedly installed at the bottom of the collection bucket 3, and the drive rod 42 connected to the drive motor 4 can simultaneously drive the granulating knife assembly and the cleaning knife 44. The rotating agitator 47 causes the material to form granules at the conical granulation hood 23 and diffuse down the inner wall of the granulation cylinder 2. The cleaning blade 44 performs a secondary agitation, making the granules more uniform and automatically cleaning the inner wall of the granulation cylinder 2. The granules fall onto the screening screen 31 and are uniformly stirred by the agitator 47, achieving the granulation process. Larger granules are trapped on the upper part of the screening screen 31. Since this material cannot enter the next stage of production, to avoid waste, the trapped material can be poured out by disassembling the collection bucket 3. The dust generated during granulation is absorbed and filtered by the dust removal mechanism 6, composed of a dust pump 61, a purification box 62, and a dust suction pipe 64, reducing dust emission pollution. The overall design is reasonable, easy to assemble, and self-cleaning, reducing production time and labor costs and improving the granulation efficiency of the machine.
[0038] Reference Figure 2 and Figure 3 The connection between the suction pipe 64 and the pellet cylinder 2 is provided with a multi-hole dust discharge port 21, which is evenly distributed in a circular array. The pellet cylinder 2 is provided with a multi-hole dust discharge port 21 that matches the suction pipe 64, and the multi-hole dust discharge port 21 can only penetrate fine dust.
[0039] Reference Figure 1 and Figure 3 Both ends of the pelletizing cylinder 2 are fixed with limiting rings 22. The pelletizing cylinder 2, the receiving hopper 1, and the collecting bucket 3 are all detachably limited by clamps 7. The connecting ends of the pelletizing cylinder 2 and the receiving hopper 1 and the collecting bucket 3 are all equipped with clamps 7. By using the clamps 7 to fit outside the limiting rings 22, the pelletizing cylinder 2, the receiving hopper 1, and the collecting bucket 3 can be stably limited and fixed. Moreover, by removing the clamps 7, the pelletizing cylinder 2, the receiving hopper 1, and the collecting bucket 3 can be easily disassembled.
[0040] Reference Figure 2 and Figure 5The conical granulator 23 has an end ring 232 fixedly installed at its upper end. The end ring 232 is embedded in the limiting ring 22 at the upper end of the granulator cylinder 2. The conical granulator 23 has a plurality of granulation holes 231 evenly arranged along its circumference. When the conical granulator 23 is installed, it is inserted into the granulator cylinder 2, and the end ring 232 is embedded in the limiting ring 22 at the upper end of the granulator cylinder 2. The end ring 232 is limited between the granulator cylinder 2 and the limiting clamp 7 at the receiving hopper 1.
[0041] Reference Figure 2 and Figure 5 The sizing knife assembly includes a sizing knife head 45 and three T-shaped sizing knives 46. The sizing knife head 45 and the T-shaped sizing knives 46 are fixedly connected, and the three T-shaped sizing knives 46 are evenly arranged along the circumference of the sizing knife head 45. The T-shaped sizing knives 46 are fitted and connected to the inner wall of the conical sizing cover 23. The sizing knife head 45 is threadedly connected to the upper end of the drive rod 42. The drive rod 42 extends movably into the interior of the conical sizing cover 23. By using the threaded connection between the sizing knife head 45 and the drive rod 42, the drive rod 42 can drive the sizing knife head 45 to rotate. The sizing knife head 45 drives the three T-shaped sizing knives 46 to rotate at high speed along the inner wall of the conical sizing cover 23, which can perform sizing of materials.
[0042] Reference Figure 2 and Figure 5 A connecting rod 43 is fixedly provided between the cleaning blade 44 and the drive rod 42. The three cleaning blades 44 are evenly distributed around the circumference of the drive rod 42. The cleaning blades 44 have an arc-shaped structure and are attached to the inner wall of the pelletizing cylinder 2. The drive rod 42 is fixedly connected to the cleaning blades 44 through the connecting rod 43. The high-speed rotating arc-shaped cleaning blades 44 cause the falling granules to impact upwards again, thereby causing the granules to turn over again and making the granules more evenly distributed. The cleaning blades 44 can also automatically clean the inner wall of the pelletizing cylinder 2.
[0043] Reference Figure 1 and Figure 2 The bottom of the equipment box 5 is fixedly provided with two base plates 51, and a self-locking universal wheel 52 is rotatably installed at both ends of the base plates 51. The upper surface of the equipment box 5 is fixedly provided with a handle 53. The equipment box 5 is rotatably installed with four self-locking universal wheels 52 through the two base plates 51, which can be easily pushed and moved to a new position, improving the flexibility of equipment use.
[0044] Reference Figure 1 and Figure 2 The dust discharge pipe of the dust pump 61 extends to the outside of the equipment box 5. Two filter plates 63 are detachably installed inside the purification box 62. The dust pump 61 serves as the power source for dust collection, continuously sucking up floating dust from the granulation cylinder 2. After being deeply filtered by the two filter plates 63 in the purification box 62, the floating dust is discharged through the dust discharge pipe of the dust pump 61, which greatly reduces the amount of dust emissions and reduces dust pollution.
[0045] Working Principle: This pelletizer can be easily connected to the material conveying mechanism via four self-locking casters 52 installed at the bottom of the equipment box 5. The receiving hopper 1 collects the material to be pelletized, which falls into the conical pelletizing hood 23 of the pelletizing cylinder 2. The drive motor 4 drives the drive rod 42 to rotate, simultaneously rotating the pelletizing blade assembly, cleaning blade 44, and stirring blade 47. The material, in conjunction with the pelletizing blade assembly, forms granules within the conical pelletizing hood 23, which then diffuse and fall towards the inner circumference of the pelletizing cylinder 2. The strong impact of the cleaning blade 44 causes the granules to rise and tumble again, making the granules more uniform. The cleaning blade 44 also automatically cleans the inner wall of the pelletizing cylinder 2. The granules fall onto the screening screen 31 and pass through… The stirring blades 47 uniformly agitate the material, achieving the screening process. Larger particles are trapped on the upper part of the screening screen plate 31. Since this part of the material cannot enter the next stage of the production process, to avoid waste, the trapped material can be poured out by disassembling the collection bucket 3. The dust generated during the granulation process is extracted from the granulation cylinder 2 by the dust pump 61 as the power source and the dust suction pipe 64. The dust is absorbed and filtered by the filter plate 63 in the purification box 62 before being discharged, thereby reducing dust emission pollution. The overall design is reasonable, easy to assemble, and can achieve self-cleaning, reducing production time and labor costs and improving the granulation efficiency of the machine.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A solid preparation granulator characterized by comprising: Include: A receiving hopper (1) is detachably fitted with a sizing cylinder (2). A collecting bucket (3) is detachably fitted at the bottom of the sizing cylinder (2). A conical sizing cover (23) is fixed at the upper end of the sizing cylinder (2). A sizing knife assembly is rotatably fitted inside the conical sizing cover (23). Three cleaning knives (44) are rotatably fitted inside the sizing cylinder (2) and outside the conical sizing cover (23). A screening screen (31) is fixed inside the collecting bucket (3). A stirring blade (47) is rotatably fitted on the upper surface of the screening screen (31). A discharge plug (32) is threaded at the bottom of the collecting bucket (3). A drive motor (4) is fixedly fitted at the bottom of the collecting bucket (3). A drive rod (42) is driven by the output shaft of the drive motor (4). The drive rod (42) is driven by the sizing knife assembly, the cleaning blades (44), and the stirring blades (47). Equipment box (5), inside which a dust removal mechanism (6) is installed, the dust removal mechanism (6) includes a dust pump (61), a purification box (62) and a dust suction pipe (64). The dust pump (61) and the purification box (62) are both fixedly installed inside the equipment box (5) and connected by a pipe. The dust suction pipe (64) is welded and fixed to the granulation cylinder (2), and the granulation cylinder (2) is connected to the purification box (62) through the dust suction pipe (64).
2. The solid preparation whole granulator according to claim 1, characterized by: The connection between the suction pipe (64) and the pellet cylinder (2) is provided with a multi-hole dust discharge port (21), which is evenly distributed in a circular array.
3. The solid preparation whole granulator according to claim 1, characterized by: Both ends of the pelletizing cylinder (2) are fixed with limiting rings (22), and the pelletizing cylinder (2) can be detachably limited by clamps (7) between the receiving hopper (1) and the collecting bucket (3).
4. The solid preparation whole granulator according to claim 3, characterized by: The conical granulator cover (23) is fixedly provided with an end ring (232) at the upper end. The end ring (232) is embedded in the limiting ring (22) at the upper end of the granulator cylinder (2). The conical granulator cover (23) is uniformly provided with a plurality of granulator holes (231) along the circumference.
5. A solid dosage form granulator according to claim 1, characterized in that: The sizing knife assembly includes a sizing knife head (45) and three T-shaped sizing knives (46). The sizing knife head (45) and the T-shaped sizing knives (46) are fixedly connected, and the three T-shaped sizing knives (46) are evenly arranged along the circumference of the sizing knife head (45). The T-shaped sizing knives (46) are fitted and connected to the inner wall of the conical sizing cover (23). The sizing knife head (45) is threadedly connected to the upper end of the drive rod (42).
6. The solid preparation whole granulator according to claim 1, characterized by: A connecting rod (43) is fixed between each of the cleaning blades (44) and the drive rod (42). The three cleaning blades (44) are evenly distributed around the circumference of the drive rod (42). The cleaning blades (44) have an arc-shaped structure and are attached to the inner wall of the granulation cylinder (2).
7. The solid preparation whole granulator according to claim 1, characterized by: The bottom surface of the equipment box (5) is fixedly provided with two base plates (51), and each end of the base plate (51) is rotatably installed with a self-locking universal wheel (52). The upper surface of the equipment box (5) is fixedly provided with a handle (53).
8. The solid preparation whole granulator according to claim 1, characterized by: The dust outlet pipe of the dust pump (61) extends to the outside of the equipment box (5), and two filter plates (63) are detachably installed inside the purification box (62).