A traditional Chinese medicine pill size screening device
By combining a spiral conveyor rod and a multi-stage screening plate, along with a feeding frame and a pusher plate structure, the problems of low efficiency and low precision in screening traditional Chinese medicine pills are solved, achieving efficient and convenient multi-stage screening and collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING KEYAN HUICHUANG BIOMEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-14
Smart Images
Figure CN224486632U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, and in particular to a screening device for the size of traditional Chinese medicine pills. Background Technology
[0002] In the field of traditional Chinese medicine preparation production, the size uniformity of Chinese medicine pills, as one of the traditional dosage forms, directly affects the efficacy, dosage accuracy, and patient experience. Whether for clinical use or drug production and distribution, Chinese medicine pills must be screened by size to ensure that the specifications of pills in the same batch are uniform. Pills with consistent specifications can ensure a stable release rate of active ingredients, avoid dosage deviations caused by differences in pill size, and reduce medication risks. At the same time, uniform pills are also easier to package, store, and transport, reducing packaging difficulties or damage during transportation caused by inconsistent specifications.
[0003] In existing technologies, the size screening of Chinese medicine pills is mostly done manually or with simple screening devices. Manually, the screen is shaken to allow pills that meet the specifications to pass through the screen holes, while those that do not meet the specifications remain in the screen. Simple screening devices are mostly screen structures. The pills are poured into the screen, and a vibrating motor drives the screen to vibrate, so that the pills pass through the screen holes during the vibration process to achieve size separation.
[0004] However, existing technologies have obvious problems with screening efficiency and accuracy. Manual screening relies entirely on the experience and physical strength of operators, which is not only labor-intensive, but also prone to fatigue due to long hours of work, thus reducing screening efficiency and accuracy and causing missed screening and incorrect screening. Screening devices can only screen a single size at a time. If multi-level screening is required, the screens must be changed repeatedly and the screening process must be repeated, which is cumbersome and time-consuming. Therefore, a screening device for the size of Chinese medicine pills is proposed to solve the above problems. Summary of the Invention
[0005] To overcome the above shortcomings, this utility model provides a traditional Chinese medicine pill size screening device, which aims to improve the existing technology that can only perform single-size screening at a time. If multi-level screening is required, the screen needs to be changed repeatedly, which is cumbersome and time-consuming.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A traditional Chinese medicine pill size screening device includes a machine body, a motor fixedly connected to one side of the machine body, a spiral conveying rod fixedly connected to the output end of the motor, the spiral conveying rod being rotatably connected inside the machine body, a feeding hopper fixedly connected inside the machine body, a screening component being provided inside the machine body, and a feeding component being provided at the bottom of the machine body;
[0008] The screening assembly includes a screening plate one and a screening plate two. The outer walls of both screening plate one and screening plate two are fixedly connected to the bottom wall inside the machine body. Screening plate one has multiple fine sieve holes inside, and screening plate two has multiple coarse sieve holes inside. A discharge pipe is fixedly connected to the other side of the machine body. The spiral conveyor rod is rotatably connected to the discharge pipe. A collection box is fixedly connected to the bottom of the other side of the machine body. The collection box is located at the bottom of one end of the discharge pipe.
[0009] As a further description of the above technical solution:
[0010] The feeding assembly includes a feeding frame one and a feeding frame two. The tops of the feeding frame one and the feeding frame two are fixedly connected to the bottom of the machine body. The feeding frame one and the feeding frame two are located at the bottom of the screening plate one and the screening plate two, respectively.
[0011] As a further description of the above technical solution:
[0012] Both the first and second feeding frames are slidably connected to left and right sliding rods, and each sliding rod has a push plate fixedly connected to one end.
[0013] As a further description of the above technical solution:
[0014] Both the first and second feeding frames have internal sliding grooves, and the bottoms of the two push plates are respectively attached to the inner bottom walls of the first and second screening plates.
[0015] As a further description of the above technical solution:
[0016] Each of the sliding rods has a spring sleeved on its outer wall. One end of each spring is connected to a corresponding feeding frame one and a feeding frame two, and the other end of each spring is connected to a corresponding screening plate one.
[0017] As a further description of the above technical solution:
[0018] Each of the two push plates has a sliding column fixedly connected to one side, and the two sliding columns are slidably connected inside the corresponding sliding grooves.
[0019] As a further description of the above technical solution:
[0020] Both the first and second feeding frames have a support shaft rotatably connected to one side, and both support shafts have an opening and closing plate fixedly connected to their outer walls.
[0021] As a further description of the above technical solution:
[0022] Each of the two sliding columns has a handle fixedly connected to one end, and each of the two support shafts has a knob fixedly connected to one end.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, a motor drives a spiral conveyor rod to rotate and move the pills, so that the pills pass through a screening plate with fine sieve holes and a screening plate with coarse sieve holes in sequence. With the help of a feeding frame 1, a feeding frame 2 and a discharge pipe, pills of different specifications are collected respectively. This realizes the effect of multi-level screening and classification collection of Chinese medicine pills in one conveying, which solves the problem that only a single specification can be screened at a time. If multi-level screening is required, the screens need to be changed repeatedly, which is cumbersome and time-consuming. This improves the screening efficiency.
[0025] 2. In this utility model, pulling the handle drives the sliding rod and push plate to slide and push the pellets for unloading. The spring assists the push plate to reset, and the sliding column and sliding groove work together to ensure the stable movement of the push plate. At the same time, the support shaft, opening and closing plate and knob work together to assist in unloading and cleaning. This achieves the effect of convenient unloading of the pellets after screening and flexible cleaning and maintenance. It solves the problem that traditional screening equipment requires manual cleaning of each collection area, which is difficult to clean and cannot flexibly meet different unloading needs, thereby improving the flexibility of the screening equipment. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a traditional Chinese medicine pill size screening device proposed in this utility model.
[0027] Figure 2 This is a schematic diagram of the internal structure of a traditional Chinese medicine pill size screening device proposed in this utility model.
[0028] Figure 3 This is a schematic diagram of the collection box structure of a traditional Chinese medicine pill size screening device proposed in this utility model.
[0029] Figure 4 This is a schematic diagram of the feeding frame structure of a traditional Chinese medicine pill size screening device proposed in this utility model.
[0030] Figure 5 This is a schematic diagram of the pusher plate structure of a traditional Chinese medicine pill size screening device proposed in this utility model.
[0031] Legend:
[0032] 1. Machine body; 2. Motor; 3. Screw conveyor rod; 4. Screening plate one; 5. Screening plate two; 6. Fine sieve hole; 7. Coarse sieve hole; 8. Discharge pipe; 9. Feed hopper; 10. Collection box; 11. Discharge frame one; 12. Discharge frame two; 13. Slide rod; 14. Push plate; 15. Spring; 16. Slide column; 17. Handle; 18. Slide groove; 19. Support shaft; 20. Opening and closing plate; 21. Knob. Detailed Implementation
[0033] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figures 1-3 This utility model provides an embodiment of a traditional Chinese medicine pill size screening device, including a body 1. The body 1 is welded from stainless steel, which can effectively resist the corrosion of dust and moisture that may be generated during the screening of traditional Chinese medicine pills, and provide a stable installation and operating environment for the internal components of the device. A motor 2 is fixedly connected to one side of the body 1, and a spiral conveying rod 3 is fixedly connected to the output end of the motor 2. The spiral conveying rod 3 is rotatably connected inside the body 1. The spiral conveying rod 3 is made of food-grade stainless steel and the surface is polished to prevent the pills from sticking due to the rough surface during the conveying process. It can evenly push the pills to the other side of the body 1 to prevent the pills from accumulating and blocking, and to ensure the continuity of the conveying. A feed hopper 9 is fixedly connected inside the body 1 to guide the pills to fall into the body 1 in a concentrated manner to avoid spillage. A screening component is set inside the body 1, and a feeding component is set at the bottom of the body 1.
[0035] The screening assembly includes a first screening plate 4 and a second screening plate 5. The outer walls of both screening plates 4 and 5 are fixedly connected to the inner bottom wall of the machine body 1. Screening plate 4 is located at the front end of the conveying direction of the screw conveyor 3, and screening plate 5 is located at the rear end, forming a screening sequence from fine to coarse, ensuring that the pills are separated according to size gradient. Screening plate 4 has multiple fine sieve holes 6 inside, with a hole diameter of 3-5mm, which can screen out smaller-sized pills. Screening plate 5 has multiple coarse sieve holes 7 inside, with a hole diameter of... The coarse sieve 7 has a diameter of 8-10mm and is used to screen out slightly larger pills. The other side of the machine body 1 is fixedly connected to the discharge pipe 8. The screw conveyor 3 is rotatably connected inside the discharge pipe 8. The bottom of the other side of the machine body 1 is fixedly connected to the collection box 10, which is located at the bottom of one end of the discharge pipe 8. The screw conveyor 3 can accurately push larger pills that have not passed through the coarse sieve 7 to the discharge pipe 8. The collection box 10 is made of food-grade PP material and can receive larger pills discharged from the discharge pipe 8, realizing the classified collection of pills of different sizes.
[0036] Reference Figure 2 , Figure 4 and Figure 5The feeding assembly includes a first feeding frame 11 and a second feeding frame 12. The tops of both feeding frames 11 and 12 are fixedly connected to the bottom of the machine body 1. Feeding frames 11 and 12 are located at the bottom of screening plates 1 and 2, respectively. Feeding frame 11, located at the bottom of screening plate 1, is used to collect smaller pellets passing through the fine sieve holes 6. Feeding frame 12, located at the bottom of screening plate 2, is used to collect slightly larger pellets passing through the coarse sieve holes 7. The positioning design ensures that the screened pellets fall directly into their corresponding feeding frames, avoiding cross-contamination. Both feeding frames 11 and 12 have symmetrical sliding rods 13 inside. Each sliding rod 13 has a push plate 14 fixedly connected to one end. Both feeding frames 11 and 12 have internal grooves 18. The bottoms of the two push plates 14 are respectively attached to the bottom walls of screening plates 4 and 5. Food-grade silicone pads are attached to the bottom of the push plates 14 to enhance the fit between the push plates 14 and the screening plates, ensuring no pill residue during pushing. Springs 15 are fitted onto the outer walls of each sliding rod 13, with one end of each spring 15 connected to a corresponding sliding rod. The corresponding feeding frames 11 and 12 are connected. The other ends of multiple springs 15 are connected to the corresponding screening plates 4. When the handle 17 is pulled to push the push plate 14 to unload the material, the springs 15 can automatically reset the push plate 14 by their own rebound force, without the need for manual adjustment, thus improving the convenience of operation. Each of the two push plates 14 has a sliding column 16 fixedly connected to one side. The two sliding columns 16 are slidably connected inside the corresponding slide grooves 18, which can accurately guide the movement direction of the push plate 14 and prevent the push plate 14 from deviating during the sliding process. The system features a sliding and locking mechanism to ensure stable and smooth unloading. Support shafts 19 are rotatably connected to the inside of both the first and second feeding frames 11 and 12. Opening and closing plates 20 are fixedly connected to the outer walls of both support shafts 19. Handles 17 are fixedly connected to one end of each of the two sliding columns 16, and knobs 21 are fixedly connected to one end of each of the two support shafts 19. When rapid unloading is required, rotating the opening and closing plates 20 increases the unloading port area and accelerates the discharge of the pellets. When cleaning the inside of the feeding frames is necessary, fully opening the opening and closing plates 20 facilitates cleaning by operators and improves the ease of equipment maintenance.
[0037] Working principle: When using this Chinese medicine pill size screening device, firstly, the Chinese medicine pills are put into the feed hopper 9 on one side of the machine body 1. The motor 2 on one side of the machine body 1 is started, and the output end drives the spiral conveyor 3 to rotate inside the machine body 1. The spiral conveyor 3 pushes the pills to the other side of the machine body 1. During the process, they pass through the screening plate 1 4 and the screening plate 2 5. The screening plate 1 4 has fine sieve holes 6, and the screening plate 2 5 has coarse sieve holes 7. Smaller pills fall into the lower discharge frame 11 through the fine sieve holes 6, and slightly larger pills fall into the discharge frame 2 12 through the coarse sieve holes 7. The pills that do not pass through the sieve holes are pushed by the spiral conveyor 3 to the discharge pipe 8 on the other side of the machine body 1, and finally fall into the bottom collection box 10, achieving the effect of rapid multi-stage screening of pill size.
[0038] After collecting the pills, if unloading is required, the handle 17 can be pulled to move the slide rod 13 within the frame. The push plate 14 connected to the slide rod 13 moves forward accordingly, and the bottom of the push plate 14 fits against the bottom wall of the screening plate, pushing the pills out of the frame. The spring 15 on the outer wall of the slide rod 13 is stretched under force. After unloading, the handle 17 is released, and the spring 15 rebounds to reset the push plate 14. The push plate 14 drives the slide column 16 to slide within the slide groove 18, ensuring the stable movement of the push plate 14. In addition, the support shaft 19 and the outer wall opening and closing plate 20 rotatably connected to one side of the unloading frame 11 can be opened and closed by the knob 21 to assist in unloading or cleaning, realizing efficient screening, collection and unloading of Chinese medicine pills according to size.
Claims
1. A device for screening the size of traditional Chinese medicine pills, comprising a body (1), characterized in that: A motor (2) is fixedly connected to one side of the machine body (1), and a spiral conveying rod (3) is fixedly connected to the output end of the motor (2). The spiral conveying rod (3) is rotatably connected inside the machine body (1). A feeding hopper (9) is fixedly connected inside the machine body (1). A screening component is provided inside the machine body (1). A feeding component is provided at the bottom of the machine body (1). The screening assembly includes a screening plate one (4) and a screening plate two (5). The outer walls of the screening plate one (4) and the screening plate two (5) are fixedly connected to the bottom wall inside the machine body (1). The screening plate one (4) has multiple fine sieve holes (6) inside, and the screening plate two (5) has multiple coarse sieve holes (7) inside. The discharge pipe (8) is fixedly connected to the other side of the machine body (1). The spiral conveying rod (3) is rotatably connected to the discharge pipe (8). The collection box (10) is fixedly connected to the bottom of the other side of the machine body (1). The collection box (10) is located at the bottom of one end of the discharge pipe (8).
2. The traditional Chinese medicine pill size screening device according to claim 1, characterized in that: The feeding assembly includes a feeding frame one (11) and a feeding frame two (12). The tops of the feeding frame one (11) and the feeding frame two (12) are fixedly connected to the bottom of the machine body (1). The feeding frame one (11) and the feeding frame two (12) are located at the bottom of the screening plate one (4) and the screening plate two (5), respectively.
3. The traditional Chinese medicine pill size screening device according to claim 2, characterized in that: Both the first (11) and the second (12) of the feeding frame are slidably connected with left and right symmetrical sliding rods (13), and one end of each sliding rod (13) is fixedly connected with a push plate (14).
4. The traditional Chinese medicine pill size screening device according to claim 3, characterized in that: The first feeding frame (11) and the second feeding frame (12) are both provided with sliding grooves (18), and the bottoms of the two push plates (14) are respectively attached to the bottom walls of the first screening plate (4) and the second screening plate (5).
5. The traditional Chinese medicine pill size screening device according to claim 4, characterized in that: Each of the sliding rods (13) is fitted with a spring (15) on its outer wall. One end of each spring (15) is connected to the corresponding feeding frame one (11) and feeding frame two (12), and the other end of each spring (15) is connected to the corresponding screening plate one (4).
6. The traditional Chinese medicine pill size screening device according to claim 5, characterized in that: Each of the two push plates (14) is fixedly connected to a sliding column (16) on one side, and the two sliding columns (16) are slidably connected inside the corresponding sliding grooves (18).
7. The traditional Chinese medicine pill size screening device according to claim 6, characterized in that: The inner side of both the first (11) and the second (12) of the feeding frame is rotatably connected to a support shaft (19), and the outer wall of both support shafts (19) is fixedly connected to an opening and closing plate (20).
8. The traditional Chinese medicine pill size screening device according to claim 7, characterized in that: Each of the two sliding columns (16) has a handle (17) fixedly connected to one end, and each of the two support shafts (19) has a knob (21) fixedly connected to one end.