A quick mixing machine for traditional Chinese medicine tablet preparation
By setting a filter frame inside the mixing drum and utilizing the vibration of a vibrating motor and an eccentric block, combined with a stirring assembly and a striking device, the problem of particulate impurities in pharmaceutical raw materials was solved, improving the production quality and filtration efficiency of traditional Chinese medicine tablets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ASIA PHARM TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-09
Smart Images

Figure CN224331910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical mixing technology, specifically a rapid mixer for preparing traditional Chinese medicine tablets. Background Technology
[0002] Tablets are solid dosage forms, either in the shape of a tablet or irregularly shaped tablet, formed by uniformly mixing drugs and excipients and then compressing them. Dosage forms include various types such as oral tablets, lozenges, sublingual tablets, and oral patches. The tablet manufacturing process typically involves material crushing, granulation, drying, and tableting. Mixing is a crucial step in tablet production. According to published patent document CN217490698U, a rapid mixer for preparing traditional Chinese medicine tablets includes a base, a mixing cylinder mounted on the upper part of the base, a feeding mechanism at the upper end of the mixing cylinder, and a discharge pipe at the bottom of the mixing cylinder. It also includes a stirring mechanism mounted on the mixing cylinder for mixing the pharmaceutical raw materials. In this design, the pharmaceutical raw materials enter the mixing cylinder through the feeding mechanism, the stirring mechanism mixes the materials, and the mixed materials are discharged through the discharge pipe.
[0003] However, the above method cannot filter out particulate impurities in the pharmaceutical raw materials before mixing them, which will affect the production quality of tablets. Utility Model Content
[0004] The purpose of this invention is to provide a rapid mixer for preparing traditional Chinese medicine tablets, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A rapid mixer for preparing traditional Chinese medicine tablets includes a frame on which a mixing cylinder is mounted. Two feed inlets are symmetrically arranged at the top of the mixing cylinder. A limiting ring is provided inside the mixing cylinder, and a filter frame is placed on the limiting ring. Vibration motors are symmetrically mounted on the outer wall of the mixing cylinder. The output shaft of the vibration motor extends into the mixing cylinder and has an eccentric block installed at its end. The eccentric block is located below the filter frame. A drive motor is installed between the two feed inlets. A stirring shaft is mounted on the output shaft of the drive motor. The stirring shaft passes downward through the filter frame, and a stirring assembly is located below the eccentric block. A discharge port is provided at the bottom of the mixing cylinder.
[0007] Furthermore, the filter frame is provided with a second limiting ring at the top, the second limiting ring is provided with a plurality of limiting holes, and the first limiting ring is provided with a plurality of limiting posts at the top, the plurality of limiting posts passing through the corresponding limiting holes to limit the filter frame.
[0008] Furthermore, the diameter of the limiting hole is larger than the diameter of the limiting post.
[0009] Furthermore, the stirring assembly includes two sleeves symmetrically fixedly connected to the outer walls on both sides of the stirring shaft, with stirring blades provided between the two sleeves. Scrapers are provided on the inner walls on both sides of the mixing cylinder, and sleeve rods are symmetrically fixedly connected to the outer walls on opposite sides of the two scrapers. The sleeve rods are slidably connected to the sleeves along the axial direction, and a spring is connected to one end of the sleeve rods that are slidably connected to the sleeves.
[0010] Furthermore, the frame is symmetrically provided with striking devices on both sides, and the striking devices are located near the discharge port of the mixing drum for striking the outer wall of the mixing drum.
[0011] Furthermore, the striking device includes a telescopic cylinder fixedly connected to the outside of the frame, the piston rod of the telescopic cylinder passing through the frame and having a striking hammer at its end, the striking hammer being located inside the frame.
[0012] Furthermore, the striking hammer is made of rubber material.
[0013] The beneficial effects of this utility model are:
[0014] This invention utilizes a limiting ring inside a mixing cylinder, on which a filter frame is placed for filtering pharmaceutical raw materials to remove particulate impurities and improve product quality. A vibrating motor is symmetrically mounted on the outer wall of the mixing cylinder, with its output shaft extending into the cylinder and having an eccentric block at its end. The eccentric block is located below the filter frame. When the vibrating motor operates, its output shaft drives the eccentric block to rotate. As the eccentric block rotates, the position of its smaller end continuously changes, causing the filter frame to vibrate up and down. This vibration not only prevents particulate impurities from clogging the filter frame but also shakes off any pharmaceutical raw materials adhering to the filter frame, ensuring filtration efficiency and the utilization rate of the pharmaceutical raw materials.
[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0016] Figure 1 : Overall structural diagram of this utility model.
[0017] Figure 2 Overall cross-sectional view of this utility model Figure 1 .
[0018] Figure 3 Overall cross-sectional view of this utility model Figure 2 .
[0019] Reference numerals: 1. Frame; 2. Mixing cylinder; 3. Filter frame; 4. Vibrating motor; 5. Drive motor; 6. Stirring shaft; 7. Stirring assembly; 8. Striking device; 21. Feed inlet; 22. Limiting ring one; 23. Limiting post; 31. Limiting ring two; 32. Limiting hole; 41. Eccentric block; 71. Sleeve; 72. Stirring blade; 73. Sleeve rod; 74. Scraper; 75. Spring; 81. Telescopic cylinder; 82. Striking hammer. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] Please refer to Figure 1-3 ;
[0022] A rapid mixer for preparing traditional Chinese medicine tablets includes a frame 1, on which a mixing cylinder 2 is mounted. Two symmetrical feed inlets 21 are located at the top of the mixing cylinder 2 for adding medicinal raw materials. A limiting ring 22 is provided inside the mixing cylinder 2, and a filter frame 3 is placed on the limiting ring 22 for filtering the medicinal raw materials to remove particulate impurities and improve product quality. To prevent particles in the medicinal raw materials from clogging the filter frame 3 and to improve filtration efficiency, a vibrating motor 4 is symmetrically mounted on the outer wall of the mixing cylinder 2. The output shaft of the vibrating motor 4 extends into the mixing cylinder 2, and an eccentric block 41 is mounted at its end. The eccentric block 41 is located below the filter frame 3. When the vibrating motor 4 operates, its output shaft drives the eccentric block 41 to rotate. As the eccentric block 41 rotates, the position of its smaller end continuously changes, causing the filter frame 3 to vibrate up and down. This vibration not only prevents particulate impurities from clogging the filter frame 3 but also shakes off any medicinal raw materials adhering to the filter frame 3, ensuring filtration efficiency and the utilization rate of the medicinal raw materials. A drive motor 5 is installed between the two feed inlets 21. A stirring shaft 6 is mounted on the output shaft of the drive motor 5. The stirring shaft 6 passes downward through the filter frame 3, and a stirring assembly 7 is located below the eccentric block 41. When the drive motor 5 is started, it drives the stirring shaft 6 to rotate. As the stirring shaft 6 rotates, it drives the stirring assembly 7 to rotate, thereby stirring and mixing the filtered pharmaceutical raw materials. A discharge port is provided at the bottom of the mixing cylinder 2 for discharging the pharmaceutical mixture. In addition, a solenoid valve is provided on the outer surface of the discharge port. By controlling the opening and closing of the solenoid valve, the discharge of the pharmaceutical mixture is controlled.
[0023] Specifically, firstly, two vibrating motors 4 are started, causing the eccentric block 41 to rotate, which in turn causes the filter frame 3 to vibrate up and down. Then, the raw materials of the medicine are added to the mixing cylinder 2 through the feed port 21. After the raw materials of the medicine enter the mixing cylinder 1, they will be filtered through the filter frame 3. After the feeding is completed, the drive motor 5 is started, and the stirring component 7 begins to stir and mix the raw materials of the medicine. After the mixing is completed, the solenoid valve is opened, so that the medicine mixture is discharged from the discharge port.
[0024] In this embodiment, the filter frame 3 has a second limiting ring 31 at its top, with several limiting holes 32 on the second limiting ring 31. The first limiting ring 22 has several limiting posts 23 at its top, and these posts pass through the corresponding limiting holes 32 to limit the filter frame 3. Furthermore, the diameter of the limiting holes 32 is larger than the diameter of the limiting posts 23, allowing the filter frame 3 to vibrate slightly within the limiting range. This prevents particulate impurities that would otherwise clog the filter frame 3 from returning to their original position and continuing to clog it due to vertical vibration, thus ensuring a good filtration effect.
[0025] In this embodiment, the stirring assembly 7 includes two sleeves 71 symmetrically fixedly connected to the outer walls of both sides of the stirring shaft 6. A stirring blade 72 is provided between the two sleeves 71 for thoroughly mixing the pharmaceutical raw materials. Scrapers 74 are provided on the inner walls of both sides of the mixing cylinder 2. Sleeve rods 73 are symmetrically fixedly connected to the outer walls of the opposite sides of the two scrapers 74. The sleeve rods 73 are slidably connected to the sleeves 71 along their axial direction within the sleeves 71. A spring 75 is connected to one end of the sleeve rod 73 slidably connected within the sleeves 71. When the drive motor 5 starts, the stirring shaft 6 drives the sleeves 71 and the stirring blades 72 to rotate synchronously. The stirring blades 72 can mix the pharmaceutical raw materials. Simultaneously, the sleeves 71 drive the sleeve rods 73 to rotate, which in turn drives the scrapers 74 to rotate around the inner wall of the mixing cylinder 2. The scrapers 74 can scrape off the pharmaceutical raw materials adhering to the cylinder wall. The spring 75 ensures that the scrapers 74 remain tightly pressed against the inner wall of the mixing cylinder 2, preventing gaps and residue.
[0026] In this embodiment, the frame 1 is symmetrically provided with striking devices 8 on both sides. The striking devices 8 are located near the discharge port of the mixing drum 2 and are used to periodically strike the outer wall of the mixing drum 2 to shake off the drug mixture adhering to the drum wall and near the discharge port, so as to prevent the drug mixture from accumulating.
[0027] Specifically, the striking device 8 includes a telescopic cylinder 81 fixedly connected to the outside of the frame 1. The piston rod of the telescopic cylinder 81 passes through the frame 1 and has a striking hammer 82 at its end, which is located inside the frame 1. When the telescopic cylinder 81 operates, its piston rod extends and retracts according to a preset stroke, thereby driving the striking hammer 82 to strike the outer wall of the mixing cylinder 2. The striking hammer 82 is made of rubber, which prevents deformation of the mixing cylinder 2 during the striking process.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
Claims
1. A rapid mixer for preparing traditional Chinese medicine tablets, comprising a frame (1), wherein a mixing cylinder (2) is mounted on the frame (1), and the mixing cylinder (2) has two symmetrical feed inlets (21) at its top, characterized in that, The mixing cylinder (2) is provided with a limiting ring (22), and a filter frame (3) is placed on the limiting ring (22). Vibration motors (4) are symmetrically installed on the outer wall of the mixing cylinder (2). The output shaft of the vibration motor (4) extends into the mixing cylinder (2) and an eccentric block (41) is installed at the end. The eccentric block (41) is located below the filter frame (3). A drive motor (5) is installed between the two feed inlets (21). A stirring shaft (6) is installed on the output shaft of the drive motor (5). The stirring shaft (6) passes downward through the filter frame (3) and a stirring assembly (7) is provided below the eccentric block (41). A discharge port is provided at the bottom of the mixing cylinder (2).
2. The rapid mixer for preparing traditional Chinese medicine tablets according to claim 1, characterized in that, The filter frame (3) is provided with a second limiting ring (31) at the top, and the second limiting ring (31) is provided with a plurality of limiting holes (32). The first limiting ring (22) is provided with a plurality of limiting posts (23) at the top. The plurality of limiting posts (23) pass through the corresponding limiting holes (32) to limit the filter frame (3).
3. A rapid mixer for preparing traditional Chinese medicine tablets according to claim 2, characterized in that, The diameter of the limiting hole (32) is larger than the diameter of the limiting post (23).
4. A rapid mixer for preparing traditional Chinese medicine tablets according to claim 1, characterized in that, The stirring assembly (7) includes two sleeves (71) symmetrically fixedly connected to the outer walls of both sides of the stirring shaft (6). A stirring blade (72) is provided between the two sleeves (71). Scrapers (74) are provided on the inner walls of both sides of the mixing cylinder (2). Sleeve rods (73) are symmetrically fixedly connected to the outer walls of the opposite sides of the two scrapers (74). The sleeve rods (73) are slidably connected to the sleeves (71) along the axial direction of the sleeves (71). A spring (75) is connected to one end of the sleeve rods (73) that is slidably connected to the sleeves (71).
5. A rapid mixer for preparing traditional Chinese medicine tablets according to claim 1, characterized in that, The frame (1) is symmetrically provided with striking devices (8) on both sides. The striking devices (8) are located near the discharge port of the mixing drum (2) and are used to strike the outer wall of the mixing drum (2).
6. A rapid mixer for preparing traditional Chinese medicine tablets according to claim 5, characterized in that, The striking device (8) includes a telescopic cylinder (81) fixedly connected to the outside of the frame (1). The piston rod of the telescopic cylinder (81) passes through the frame (1) and is provided with a striking hammer (82) at the end. The striking hammer (82) is located inside the frame (1).
7. A rapid mixer for preparing traditional Chinese medicine tablets according to claim 6, characterized in that, The striking hammer (82) is made of rubber.