A raw material mixing anti-blocking stirring device for granular medicine preparation
The design of the installation and screening components solves the problems of inconvenient cleaning of the stirring shaft and device blockage, enabling quick installation and disassembly of the stirring shaft and stirring rod, avoiding raw material blockage, and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING ZILUGONG NEW BIO-PHARM CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-29
AI Technical Summary
The existing mixing device's mixing shaft is inconvenient to clean and is prone to clogging due to clumps of raw materials, affecting work efficiency.
An installation assembly and a screening assembly were designed. The installation assembly simplifies the installation and disassembly of the stirring shaft and stirring rod through a chute and spring structure. The screening assembly prevents agglomerated raw materials from entering the device through inclined plates and screens.
This improves the cleaning efficiency of the stirring shaft and stirring rod, avoids device blockage, and ensures the normal operation of the mixing process.
Smart Images

Figure CN224293029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granular drug preparation technology, and in particular to a raw material mixing and anti-clogging stirring device for granular drug preparation. Background Technology
[0002] Granules generally refer to granules, which are solid granule preparations made by mixing drugs with suitable excipients. Their advantages include convenient administration, rapid absorption, good stability, accurate dosage, and easy carrying and storage. Disadvantages include potentially unpleasant taste, hygroscopicity, and a more complex manufacturing process. According to their solubility, they can be divided into soluble, suspension, and effervescent granules. According to their use, they can be divided into oral and external applications. When taking them, it is important to dissolve them in warm water (effervescent granules must be dissolved in water first), control the dosage, and store them in a dry and cool place. Special populations, such as diabetic patients and those with allergies, need to pay extra attention to the ingredients. Common types of granules include those for colds, fever relief, cough relief and phlegm reduction, gastrointestinal issues, and antibiotics.
[0003] In the preparation of granular drugs, the raw materials need to be stirred and mixed, thus requiring the use of a stirring device. However, the current stirring devices have a relatively simple structure, and their stirring shafts are mostly connected by bolts or welding. This makes it difficult to clean the stirring shaft after stirring, which in turn affects work efficiency. Moreover, they do not have a screening mechanism, and when adding raw materials, agglomerated raw materials may be added into the device, causing blockage and seriously affecting the normal mixing process. Therefore, this application proposes a raw material mixing anti-blockage stirring device for the preparation of granular drugs to meet the requirements. Utility Model Content
[0004] To overcome the drawbacks of existing devices, such as the cumbersome cleaning of the stirring shaft and the blockage caused by clumped raw materials, this invention provides a raw material mixing and anti-clogging stirring device for the preparation of granular pharmaceuticals.
[0005] The technical implementation scheme of this utility model is as follows: a raw material mixing and anti-clogging stirring device for the preparation of granular drugs, including a stirring tank, a tank cover movably installed on the top of the stirring tank, a motor installed at the center of the top of the tank cover, a drive shaft penetrating the tank cover installed at the bottom of the motor, a stirring shaft arranged below the drive shaft, several sets of stirring rods fixedly connected to both sides of the stirring shaft, scrapers fixedly connected to the outer ends of the stirring rods, an installation assembly arranged between the stirring shaft and the drive shaft, a feed pipe fixedly connected to the top of one side of the stirring tank, and a screening assembly arranged at the top of the feed pipe.
[0006] Optionally, the mounting assembly includes a mounting base, a mounting groove, and a mounting block. The mounting base is fixedly connected to the bottom of the drive shaft, the mounting groove is formed at the bottom of the mounting base, and the mounting block is fixedly connected to the top of the stirring shaft and is adapted to the size of the mounting groove.
[0007] Optionally, the mounting assembly further includes a mounting hole, a through groove, and a mounting rod. The mounting hole extends through the mounting block, the through groove extends through the inner wall of one side of the mounting groove, and the mounting rod is movably connected to the through groove and is adapted to the size of the mounting hole.
[0008] Optionally, the mounting assembly further includes a slide groove, a slider, a spring, and a pull block. The slide groove is formed on the inner wall of the through groove. The slider is fixedly connected to the outer periphery of the mounting rod and slidably connected to the slide groove. The spring is sleeved on the outer periphery of the mounting rod and its two ends are respectively fixedly connected to the inner wall of the slider on the side away from the mounting groove and the slide groove on the side away from the mounting groove. The pull block is fixedly connected to the outer end of the mounting rod.
[0009] Optionally, the screening assembly includes a screening box, a connecting groove, and an inclined plate. The screening box is fixedly connected to the top of the feed pipe, the connecting groove passes through the bottom inner wall of the screening box and communicates with the feed pipe, and the inclined plate is fixedly connected to the bottom inner wall of the screening box.
[0010] Optionally, the screening assembly further includes a support plate, a screen, and a discharge port. The support plate is provided in two sets and is obliquely and fixedly connected to the inner walls on both sides of the screening box. The screen is movably connected to the top of the support plate and is adapted to the size of the screening box. The discharge port passes through the inner wall on one side of the screening box and its height is adapted to the screen.
[0011] This utility model has the following advantages:
[0012] 1. This utility model features an installation assembly. Pulling the pull block outward causes it to slide along the groove via the installation rod, compressing the spring. When the installation rod moves out of the installation groove and into the through groove, the installation block at the top of the stirring shaft is placed in the installation groove, ensuring the installation hole and installation rod are on the same axis. Then, the pull block is released, the spring rebounds, and the installation rod moves inward via the slider. When the installation rod is inserted into the installation hole, the installation block is fixed in the installation groove, thus completing the installation of the stirring shaft. This design makes the installation and disassembly of the stirring shaft and stirring rod simpler and faster, thereby improving the cleaning efficiency of the stirring shaft and stirring rod.
[0013] 2. This utility model, by setting up a screening component, allows the raw materials to be mixed to be added into the screening box during the mixing process. When the raw materials come into contact with the screen, due to the inclined setting of the support plate, the raw materials that meet the size requirements will fall from the screen into the bottom of the screening box and be guided by the inclined plate into the connecting groove, and then enter the mixing tank through the connecting pipe. The clumps of raw materials will slide down with the inclined direction of the screen and be discharged from the outlet. This design enables the device to screen the raw materials, thereby preventing clumps of raw materials from entering the device and causing blockages. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the stirring shaft connection structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the installation component structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the screening component structure of this utility model.
[0018] The meanings of the reference numerals in the attached diagram are as follows: 1. Mixing tank; 2. Tank cover; 3. Motor; 4. Drive shaft; 5. Mixing shaft; 6. Mixing rod; 7. Scraper; 8. Mounting assembly; 81. Mounting base; 82. Mounting groove; 83. Mounting block; 84. Mounting hole; 85. Through groove; 86. Mounting rod; 87. Slide groove; 88. Sliding block; 89. Spring; 810. Pull block; 9. Feed pipe; 10. Screening assembly; 101. Screening box; 102. Connecting groove; 103. Inclined plate; 104. Support plate; 105. Screen; 106. Discharge port. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, a further detailed description of this utility model will be provided below in conjunction with the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in this document are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0020] A raw material mixing and anti-clogging stirring device for the preparation of granular pharmaceuticals includes a mixing tank 1, a tank cover 2 movably mounted on the top of the mixing tank 1, a motor 3 mounted at the center of the top of the tank cover 2, a drive shaft 4 penetrating the tank cover 2 mounted at the bottom of the motor 3, a stirring shaft 5 arranged below the drive shaft 4, several sets of stirring rods 6 fixedly connected to both sides of the stirring shaft 5, scrapers 7 fixedly connected to the outer ends of the stirring rods 6, an installation assembly 8 arranged between the stirring shaft 5 and the drive shaft 4, and a feed pipe 9 fixedly connected to the top of one side of the mixing tank 1, with a screening assembly 10 arranged at the top of the feed pipe 9.
[0021] It should be noted that the installation component 8 makes the installation and disassembly of the stirring shaft 5 and the stirring rod 6 simpler and faster, thereby improving the cleaning efficiency of the stirring shaft 5 and the stirring rod 6. The screening component 10 enables the device to screen the raw materials, preventing agglomerated raw materials from entering the device and causing blockage.
[0022] like Figure 3As shown, the mounting assembly 8 includes a mounting base 81, a mounting groove 82, and a mounting block 83. The mounting base 81 is fixedly connected to the bottom of the drive shaft 4, the mounting groove 82 is opened at the bottom of the mounting base 81, and the mounting block 83 is fixedly connected to the top of the stirring shaft 5 and is adapted to the size of the mounting groove 82.
[0023] It should be noted that the installation of the stirring shaft 5 can be completed by placing the mounting block 83 into the mounting groove 82 and fixing it.
[0024] like Figure 3 As shown, the mounting assembly 8 also includes a mounting hole 84, a through groove 85, and a mounting rod 86. The mounting hole 84 passes through the mounting block 83, the through groove 85 passes through the inner wall of one side of the mounting groove 82, and the mounting rod 86 is movably connected to the through groove 85 and is adapted to the size of the mounting hole 84.
[0025] It should be noted that the mounting block 83 can be fixed in the mounting groove 82 by inserting the mounting rod 86 into the mounting hole 84.
[0026] like Figure 3 As shown, the mounting assembly 8 also includes a slide groove 87, a slider 88, a spring 89, and a pull block 810. The slide groove 87 is formed in the inner wall of the through groove 85. The slider 88 is fixedly connected to the outer periphery of the mounting rod 86 and slidably connected to the slide groove 87. The spring 89 is sleeved on the outer periphery of the mounting rod 86 and its two ends are fixedly connected to the inner wall of the slider 88 on the side away from the mounting groove 82 and the slide groove 87 on the side away from the mounting groove 82, respectively. The pull block 810 is fixedly connected to the outer end of the mounting rod 86.
[0027] It should be noted that pulling the pull block 810 outward will cause the slider 88 to slide outward along the slide groove 87 via the mounting rod 86 and compress the spring 89. Releasing the pull block 810 will cause the spring 89 to rebound, which will then cause the mounting rod 86 to move inward via the slider 88.
[0028] like Figure 4 As shown, the screening assembly 10 includes a screening box 101, a connecting groove 102 and an inclined plate 103. The screening box 101 is fixedly connected to the top of the feed pipe 9. The connecting groove 102 passes through the bottom inner wall of the screening box 101 and is connected to the feed pipe 9. The inclined plate 103 is fixedly connected to the bottom inner wall of the screening box 101.
[0029] It should be noted that adding the raw material into the screening box 101 will allow it to fall through the inclined plate 103 into the connecting groove 102 and then into the mixing tank 1 through the connecting pipe.
[0030] like Figure 4As shown, the screening assembly 10 also includes a support plate 104, a screen 105, and a discharge port 106. The support plate 104 is provided in two sets and is inclinedly and fixedly connected to the inner walls on both sides of the screening box 101. The screen 105 is movably connected to the top of the support plate 104 and is adapted to the size of the screening box 101. The discharge port 106 passes through the inner wall on one side of the screening box 101 and its height is adapted to the screen 105.
[0031] It should be noted that during the process of adding raw materials into the screening box 101, the screen 105 will screen them. Raw materials that meet the requirements will fall to the bottom of the screening box 101, while the agglomerated raw materials will flow out from the discharge port 106.
[0032] In a specific application scenario, firstly, pull the pull block 810 outward so that it drives the slider 88 to slide outward along the slide groove 87 via the mounting rod 86, thus compressing the spring 89. When the mounting rod 86 moves out of the mounting groove 82 and into the through groove 85, place the mounting block 83 at the top of the stirring shaft 5 into the mounting groove 82, ensuring that the mounting hole 84 and the mounting rod 86 are on the same axis. Then, release the pull block 810, and the spring 89 rebounds, driving the mounting rod 86 inward through the slider 88. When the mounting rod 86 is inserted into the mounting hole 84, the mounting block 83 is fixed in the mounting groove 82, thus completing the installation of the stirring shaft 5. Then, install the tank cover 2 on the top of the mixing tank 1 to start the mixing operation. During the mixing operation, add the raw materials to be mixed into the screening box 101. When the raw materials come into contact with the screen 105, due to the inclined setting of the support plate 104, the raw materials with the required size are separated. The material will fall from the screen 105 into the bottom of the screening box 101 and be guided by the inclined plate 103 into the connecting groove 102, and then enter the mixing tank 1 through the connecting pipe. The clumps of raw material will slide down with the inclined direction of the screen 105 and be discharged from the discharge port 106. After the raw material enters the mixing tank 1, the motor 3 is started to drive the stirring shaft 5 to rotate through the drive shaft 4 and the mounting base 81. The stirring shaft 5 drives the stirring rod 6 to rotate synchronously, thereby stirring and mixing the raw material. During this process, the scraper 7 will scrape off the raw material adhering to the inner wall of the mixing tank 1. After the stirring and mixing is completed, the raw material can be discharged from the bottom of the mixing tank 1. When it is necessary to clean the stirring shaft 5, the pull block 810 is pulled outward again to drive the mounting rod 86 to move outward. When the mounting rod 86 is removed from the mounting hole 84, the mounting block 83 is removed from the mounting groove 82 to complete the disassembly of the stirring shaft 5. At this time, it can be cleaned.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A raw material mixing and anti-clogging stirring device for the preparation of granular pharmaceuticals, comprising a stirring tank (1), characterized in that, The mixing tank (1) is movably mounted with a tank cover (2). A motor (3) is mounted at the center of the top of the tank cover (2). A drive shaft (4) that passes through the tank cover (2) is mounted at the bottom of the motor (3). A stirring shaft (5) is provided below the drive shaft (4). Several sets of stirring rods (6) are fixedly connected to both sides of the stirring shaft (5). A scraper (7) is fixedly connected to the outer end of the stirring rod (6). An installation assembly (8) is provided between the stirring shaft (5) and the drive shaft (4). A feed pipe (9) is fixedly connected to the top of one side of the mixing tank (1). A screening assembly (10) is provided at the top of the feed pipe (9).
2. A raw material mixing and anti-clogging stirring device for preparing granular pharmaceuticals according to claim 1, characterized in that, The mounting assembly (8) includes a mounting base (81), a mounting groove (82), and a mounting block (83). The mounting base (81) is fixedly connected to the bottom of the drive shaft (4). The mounting groove (82) is opened at the bottom of the mounting base (81). The mounting block (83) is fixedly connected to the top of the stirring shaft (5) and is adapted to the size of the mounting groove (82).
3. A raw material mixing and anti-clogging stirring device for preparing granular pharmaceuticals according to claim 2, characterized in that, The mounting assembly (8) also includes a mounting hole (84), a through groove (85), and a mounting rod (86). The mounting hole (84) passes through the mounting block (83), the through groove (85) passes through the inner wall of one side of the mounting groove (82), and the mounting rod (86) is movably connected to the through groove (85) and is adapted to the size of the mounting hole (84).
4. A raw material mixing and anti-clogging stirring device for preparing granular pharmaceuticals according to claim 3, characterized in that, The mounting assembly (8) further includes a groove (87), a slider (88), a spring (89), and a pull block (810). The groove (87) is formed on the inner wall of the through groove (85). The slider (88) is fixedly connected to the outer periphery of the mounting rod (86) and slidably connected to the groove (87). The spring (89) is sleeved on the outer periphery of the mounting rod (86) and its two ends are fixedly connected to the inner wall of the slider (88) away from the mounting groove (82) and the side of the groove (87) away from the mounting groove (82), respectively. The pull block (810) is fixedly connected to the outer end of the mounting rod (86).
5. A raw material mixing and anti-clogging stirring device for preparing granular pharmaceuticals according to claim 1, characterized in that, The screening assembly (10) includes a screening box (101), a connecting groove (102), and an inclined plate (103). The screening box (101) is fixedly connected to the top of the feed pipe (9). The connecting groove (102) passes through the bottom inner wall of the screening box (101) and is connected to the feed pipe (9). The inclined plate (103) is fixedly connected to the bottom inner wall of the screening box (101).
6. A raw material mixing and anti-clogging stirring device for preparing granular pharmaceuticals according to claim 5, characterized in that, The screening assembly (10) further includes a support plate (104), a screen (105), and a discharge port (106). The support plate (104) is provided in two sets and is fixedly connected to the inner walls on both sides of the screening box (101) at an incline. The screen (105) is movably connected to the top of the support plate (104) and is adapted to the size of the screening box (101). The discharge port (106) passes through the inner wall on one side of the screening box (101) and its height is adapted to the screen (105).