A cutting mechanism for a pharmaceutical pelleting machine
By designing a compact cutting mechanism in the pharmaceutical pelleting machine, and utilizing a servo motor drive and tilting cutting blades, the problems of large equipment footprint and unstable operation have been solved, achieving efficient cutting and ensuring material quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN SPECIAL RES PHARM CO LTD
- Filing Date
- 2025-03-10
- Publication Date
- 2026-07-31
AI Technical Summary
The cutting mechanism of the pharmaceutical pelleting machine is not compact, resulting in a large footprint and affecting the stability and operating efficiency of the equipment.
Design a cutting mechanism that includes a chassis, transmission components, servo motor, barrel, drive shaft, granulation and extrusion components, and granulation plate. The servo motor drives the drive shaft and granulation and extrusion components to achieve initial material shaping, and the inclined cutting tool is used for precise cutting. The sealing design prevents material leakage and dust from entering.
It improves the accuracy and efficiency of cutting, ensures material quality, reduces equipment maintenance costs, extends service life, and meets diverse production needs.
Smart Images

Figure CN224572994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pelleting machine cutting technology, and in particular to a cutting mechanism for a pharmaceutical pelleting machine. Background Technology
[0002] A pharmaceutical pill-making machine is a specialized device used to form medicinal pills from materials such as traditional Chinese medicine herbs. It can produce various types of pills, including honey pills, concentrated pills, water-honey pills, and water pills, and is particularly suitable for small pharmaceutical factories, large and medium-sized pharmaceutical factory pilot plants, traditional Chinese medicine research institutes, hospitals, private clinics, traditional Chinese medicine shops, and on-site processing and sales points for precious tonics. It can efficiently produce granular products to meet the needs of various traditional Chinese medicine preparations. A pharmaceutical pill-making machine typically consists of a pill-making drum, motor, heater, and other components. The entire machine is made of stainless steel and meets GMP standards. It is small in size, lightweight, operates smoothly, has low noise, produces no pollution, and is simple to operate, safe, and reliable.
[0003] In actual use, pharmaceutical pelleting machines do indeed have the disadvantage of a large footprint due to the loose structure between the cutting mechanisms. This is mainly because the design of pharmaceutical pelleting machines often needs to consider multiple functional modules, such as extrusion mechanisms and pelleting mechanisms, and the connection and coordination between these modules require a certain amount of space.
[0004] Specifically, the extrusion mechanism is responsible for extruded the mixed materials to form strips of medicinal material. This process requires sufficient space to accommodate components such as the screw and extrusion orifice. The pelleting mechanism, on the other hand, needs to cut and round the extruded medicinal material to form regular pills. In this process, the pelleting mechanism requires sufficient space to install components such as cutting blades and pellet rolling rollers, while also ensuring that these components can operate smoothly.
[0005] However, the design of the cutting mechanism often lacks sufficient compactness, resulting in excessive space being occupied by the connections between the various modules. This not only increases the overall size of the equipment but also requires a larger space for installation and use. Furthermore, the non-compact structure can also affect the stability and operating efficiency of the equipment, as the coordination and transmission between the various components may be less smooth due to space constraints. Utility Model Content
[0006] The main objective of this invention is to provide a cutting mechanism for a pharmaceutical pelleting machine, which can effectively solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cutting mechanism for a pharmaceutical pelleting machine includes a housing, a transmission assembly, a servo motor, a barrel, a drive shaft, a granulation and extrusion assembly, and a granulation plate. The barrel is mounted on the housing, the servo motor is mounted on the housing via the transmission assembly, the drive shaft is located in the middle of the barrel, and the drive shaft passes through the barrel and the housing and is connected to the transmission assembly. The granulation plate is located at the upper end of the drive shaft, and the granulation and extrusion assembly is disposed on the granulation plate. The granulation operation is achieved by the servo motor driving the drive shaft and the granulation and extrusion assembly to move. The upper end of the granulation plate is provided with multiple granulation through holes. The material enters the granulation through holes through the granulation extrusion component and achieves preliminary shaping through the granulation through holes. A tool holder is connected to the drive shaft. The side wall of the tool holder is provided with multiple cutting tools. The cutting tools are placed at an angle at the lower end of the granulation plate to cut the material at the granulation through hole.
[0008] As an optional solution of this utility model, a discharge hood is provided at the side wall opening of the barrel. The discharge hood is fixed to the barrel by bolts. The granulation through hole and the inner cavity of the barrel are connected to the discharge hood. A sealing strip is provided at the connection between the discharge hood and the barrel. As an optional solution of this utility model, the upper end of the machine cylinder is installed with an upper cylinder by fasteners, and the upper cylinder and the upper end of the machine cylinder form a material bin for storing the drug. A sealing ring is provided at the connection between the machine cylinder and the upper cylinder, and the machine cylinder is fixed to the granulation material plate by bolts. As an optional solution of this utility model, the granulation through-hole array is distributed on the granulation material plate, and a bearing device is provided at the connection between the drive shaft and the granulation material plate, and a seal is provided at the bearing device; As an optional solution of this utility model, the tool holder is fixed to the drive shaft by bolts, a sealing ring is provided at the connection between the tool holder and the drive shaft, and multiple cutting tools are distributed in a ring on the tool holder; As an optional embodiment of this utility model, the inclination angle of the cutting tool is in the range of 10 degrees to 45 degrees, and the cutting surface of the cutting tool is inclined to align with the granulation plate.
[0009] Compared with the prior art, the present invention has the following beneficial effects: The material is pre-shaped through multiple granulation holes in the granulation plate, providing a good foundation for subsequent cutting operations. This design ensures that the material has a certain shape and specifications before entering the cutting stage, thereby improving the accuracy and efficiency of cutting.
[0010] The cutting blade is angled and positioned at the lower end of the granulation plate to precisely cut the material at the granulation holes. This angled design allows the cutting blade to effectively cut the material while ensuring uniformity and efficiency. Furthermore, by precisely controlling the angle of the cutting blade, it is possible to adapt to different materials, meeting diverse production needs.
[0011] The granulation through-hole, the inner cavity of the barrel, and the discharge hood are interconnected, ensuring that the material can be smoothly discharged from the discharge hood. Simultaneously, a sealing strip is installed at the connection between the discharge hood and the barrel to prevent material leakage during discharge, ensuring cleanliness of operation and the integrity of the material. This design not only improves the equipment's production efficiency but also ensures the quality of the material.
[0012] The connection between the cutting mechanism and the granulation plate is stable and reliable, ensuring long-term stable operation of the equipment. The use of bolts and sealing rings effectively prevents material leakage and dust from entering the drive shaft, protecting its cleanliness and extending its service life. This design not only improves the reliability and durability of the equipment but also reduces maintenance costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 The illustration shows the granulation plate, drive shaft, granulation extrusion assembly, and cutting tool of this utility model. Figure 3 This is a display diagram of the granulation plate, drive shaft, tool holder, and cutting tool of this utility model; Figure 4 This is an exploded view of the granulation plate, tool holder, and cutting tool of this utility model.
[0014] In the diagram: 1. Chassis; 2. Transmission assembly; 3. Servo motor; 5. Barrel; 6. Upper barrel; 7. Material bin; 8. Granulation and extrusion assembly; 9. Drive shaft; 10. Granulation plate; 11. Granulation through hole; 12. Tool holder; 13. Cutting tool; 14. Discharge hood. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0016] like Figure 1 - Figure 4As shown, a cutting mechanism for a pharmaceutical pelleting machine has an ingenious structural design, including a housing 1, a transmission assembly 2, a servo motor 3, a barrel 5, a drive shaft 9, a granulation and extrusion assembly 8, and a granulation plate 10. The barrel 5 is carefully mounted in a suitable position on the housing 1, ensuring the stability of the overall structure. The servo motor 3 is cleverly mounted on the housing 1 via the transmission assembly 2, whose design allows the servo motor 3 to efficiently drive the entire mechanism. The drive shaft 9 is located in the middle of the barrel 5, passing through the barrel 5 and the housing 1, and is tightly connected to the transmission assembly 2, ensuring smooth power transmission. The granulation plate 10 is positioned at the upper end of the drive shaft 9, and the granulation and extrusion assembly 8 is carefully mounted on the granulation plate 10. Driven by the servo motor 3, the drive shaft 9 and the granulation and extrusion assembly 8 move, thereby realizing the granulation operation.
[0017] Multiple through holes for granulation are provided at the upper end of the granulation plate 10. The material is fed into these granulation through holes 11 through the granulation extrusion assembly 8. During this process, the material is initially shaped, laying a good foundation for subsequent cutting operations.
[0018] A tool holder 12 is connected to the drive shaft 9, and multiple cutting tools 13 are provided on the side wall of the tool holder 12. These cutting tools 13 are inclinedly arranged at the lower end of the granulation plate 10 to perform precise cutting operations on the material at the granulation through hole 11, ensuring the uniformity and efficiency of cutting.
[0019] A discharge hood 14 is provided at the side wall opening of the barrel 5, and the discharge hood 14 is fixed to the barrel 5 with bolts. The granulation through hole 11, the inner cavity of the barrel 5, and the discharge hood 14 are connected to ensure that the material can be discharged smoothly from the discharge hood 14. A sealing strip is provided at the connection between the discharge hood 14 and the barrel 5 to prevent material leakage during the discharge process, ensuring the cleanliness of the operation and the integrity of the material.
[0020] An upper cylinder 6 is fastened to the upper end of the barrel 5. Together, the upper cylinder 6 and the upper end of the barrel 5 form a material bin 7 for storing the drug. A sealing ring is provided at the connection between the barrel 5 and the upper cylinder 6 to ensure the drug is sealed during storage and to prevent it from getting damp or contaminated. The barrel 5 is fixed to the granulation plate 10 with bolts, ensuring the stability and reliability of the structure and providing a guarantee for long-term stable operation.
[0021] The granulation through-holes 11 are arrayed on the granulation plate 10. A bearing device is provided at the connection between the drive shaft 9 and the granulation plate 10. The bearing device is equipped with a seal to ensure the smooth rotation of the drive shaft 9 and prevent lubricating oil leakage, thereby ensuring the long-term stable operation of the equipment.
[0022] The tool holder 12 is fixed to the drive shaft 9 by bolts. A sealing ring is provided at the connection between the tool holder 12 and the drive shaft 9 to prevent dust generated during the cutting process from entering the interior of the drive shaft 9, thus protecting the cleanliness of the drive shaft 9 and extending its service life. Multiple cutting tools 13 are arranged in a ring on the tool holder 12 to ensure uniformity and efficiency in cutting, making the entire cutting process both efficient and precise.
[0023] The inclination angle of the cutting blade 13 ranges from 10 to 45 degrees. The cutting surface of the cutting blade 13 is tilted and aligned with the granulation plate 10. This design can effectively cut the material while ensuring cutting accuracy and efficiency. By precisely controlling the angle of the cutting blade 13, adaptive cutting of different materials can be achieved, meeting diverse production needs.
[0024] Assembly Process: Install the barrel 5 in a suitable position on the housing 1, ensuring the stability of the overall structure. The servo motor 3 is cleverly mounted on the housing 1 via the transmission assembly 2, ensuring efficient drive of the entire mechanism. The transmission shaft 9 passes through the barrel 5 and housing 1, and is tightly connected to the transmission assembly 2, ensuring smooth power transmission. A granulation plate 10 is installed at the upper end of the transmission shaft 9 and secured with bolts. The granulation extrusion assembly 8 is carefully installed on the granulation plate 10. A cutter holder 12 is connected to the shaft of the transmission shaft 9, and multiple cutting cutters 13 are installed on the side wall of the cutter holder 12. The cutting cutters 13 are positioned at an angle at the lower end of the granulation plate 10 to precisely cut the material at the granulation through-hole 11. A discharge hood 14 is installed at the side wall opening of the barrel 5 and secured with bolts. The upper cylinder 6 is installed on the upper end of the barrel 5 using fasteners, forming a material bin 7. A sealing ring is provided at the connection between the barrel 5 and the upper cylinder 6 to prevent the drug from getting damp or contaminated. The barrel 5 is fixed to the granulation plate 10 with bolts, ensuring a tight seal at the connection. A bearing assembly and seals are provided at the connection between the drive shaft 9 and the granulation plate 10 to prevent lubricant leakage. A sealing ring is provided at the connection between the cutter holder 12 and the drive shaft 9 to prevent dust generated during the cutting process from entering the drive shaft 9.
[0025] Operating Procedure: Place the medicine or other materials into the material hopper 7 in the upper cylinder 6. Start the servo motor 3, which drives the drive shaft 9 and the granulation extrusion assembly 8 via the transmission component 2. The material is fed into the granulation through-hole 11 on the granulation plate 10 through the granulation extrusion assembly 8, during which the material undergoes initial shaping. The cutting blade 13 precisely cuts the material at the granulation through-hole 11, ensuring uniformity and efficiency. The cut material passes through the granulation through-hole 11 and the inner cavity of the cylinder 5 into the discharge hood 14 and is smoothly discharged. The sealing strip at the connection between the discharge hood 14 and the cylinder 5 prevents material leakage, ensuring cleanliness and material integrity. Monitor the tilt angle of the cutting blade 13 as needed to ensure adaptability to different materials. Adjust the speed of the servo motor 3 and the pressure of the granulation extrusion assembly 8 to optimize granulation and cutting effects. Regularly inspect and maintain all components to ensure long-term stable operation of the equipment. Clean the discharge hood 14 and the cylinder 5 to prevent material residue and contamination.
[0026] The multiple through holes on the granulation plate of this invention allow for preliminary material shaping, laying a solid foundation for the cutting operation. This ensures that the material already has the correct shape and specifications before cutting, improving the accuracy and efficiency of the cutting process. The cutting blade is inclined and positioned at the lower end of the granulation plate for precise cutting of the material through the through holes. The inclined design ensures uniform and efficient cutting, and by controlling the blade angle, it enables adaptive cutting of different materials, meeting diverse production needs. The above are preferred embodiments of this utility model and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solution of this utility model without departing from the spirit and scope of this utility model shall fall within the protection scope of this utility model.
Claims
1. A cutting mechanism for a pharmaceutical pelleting machine, comprising a housing (1), a transmission assembly (2), a servo motor (3), a barrel (5), a transmission shaft (9), a granulation and extrusion assembly (8), and a granulation plate (10), wherein the barrel (5) is mounted on the housing (1), the servo motor (3) is mounted on the housing (1) via the transmission assembly (2), the transmission shaft (9) is located in the middle of the barrel (5), the transmission shaft (9) passes through the barrel (5) and the housing (1) and is connected to the transmission assembly (2), the granulation plate (10) is located at the upper end of the transmission shaft (9), and the granulation and extrusion assembly (8) is disposed on the granulation plate (10). The granulation operation is realized by the servo motor (3) driving the transmission shaft (9) and the granulation and extrusion assembly (8) to move, characterized in that: The upper end of the granulation plate (10) is provided with multiple granulation through holes (11). The material enters the granulation through holes (11) through the granulation extrusion assembly (8) and achieves preliminary shaping through the granulation through holes (11). The drive shaft (9) is connected to a tool holder (12). The side wall of the tool holder (12) is provided with multiple cutting tools (13). The cutting tools (13) are placed at an angle at the lower end of the granulation plate (10) to cut the material at the granulation through hole (11).
2. A cutting mechanism for a pill making machine as claimed in claim 1, wherein: The side wall opening of the barrel (5) is provided with a discharge hood (14), which is fixed to the barrel (5) by bolts. The granulation through hole (11) and the inner cavity of the barrel (5) are connected to the discharge hood (14). A sealing strip is provided at the connection between the discharge hood (14) and the barrel (5).
3. A cutting mechanism for a pill making machine as defined in claim 2, wherein: The upper end of the barrel (5) is fitted with an upper cylinder (6) by fasteners. The upper cylinder (6) and the upper end of the barrel (5) form a material hopper (7) for storing drugs. A sealing ring is provided at the connection between the barrel (5) and the upper cylinder (6). The barrel (5) and the granulation plate (10) are fixed by bolts.
4. The cutting mechanism of a pill making machine for pharmaceutical use according to claim 3, characterized in that: The granulation through holes (11) are arrayed on the granulation plate (10). A bearing device is provided at the connection between the drive shaft (9) and the granulation plate (10), and a seal is provided at the bearing device.
5. A cutting mechanism for a pill making machine as defined in claim 4, wherein: The tool holder (12) is fixed to the drive shaft (9) by bolts. A sealing ring is provided at the connection between the tool holder (12) and the drive shaft (9). Multiple cutting tools (13) are distributed in a ring on the tool holder (12).
6. A cutting mechanism for a pill making machine as defined in claim 5, wherein: The cutting tool (13) has an inclination angle ranging from 10 degrees to 45 degrees, and the cutting surface of the cutting tool (13) is tilted and aligned with the granulation plate (10).