Traditional Chinese medicine decoction piece processing adjustable mesh classification screening device
Patent Information
- Application Number
- CN202522474055.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-21
AI Technical Summary
[0003]目前，市面上常用的中药饮片筛选装置多为固定筛孔结构，即筛板上的筛孔孔径固定不变，一套装置通常仅能实现单一或少数固定规格的筛选
[0017]本实用新型通过电动伸缩杆驱动筛孔调节板移动时，可灵活调整调节板上孔洞与主筛板筛孔的对齐程度，直至完全覆盖筛孔，既能根据饮片粒径需求精准控制筛选规格，满足不同分级标准，又能通过调节板的遮挡功能随时暂停对应区域的筛选作业，提升筛选操作的灵活性和精准度，有效避免不同粒径饮片的混合，保障分级筛选质量。
Smart Images
Figure CN224912881U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of traditional Chinese medicine processing equipment, and more specifically, to a grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces. Background Technology
[0002] In the processing of traditional Chinese medicine (TCM) decoction pieces, grading and screening are crucial steps. The particle size of TCM decoction pieces directly affects the efficiency of subsequent processing and decoction, as well as the efficacy of the medicine. Different prescriptions or applications have different requirements for the particle size of the decoction pieces. For example, some decoction pieces need to be crushed into fine particles for oral administration, while others need to be retained in larger pieces for decoction. Therefore, it is necessary to use screening devices to separate the processed decoction pieces into multiple specifications according to particle size to meet different production and usage needs.
[0003] Currently, most commercially available herbal medicine screening devices use a fixed sieve hole structure, meaning the sieve hole diameter on the sieve plate remains constant. A single device can typically only screen a single or a few fixed specifications. When the grading standards need to be adjusted, the machine must be stopped to replace the sieve plate with a different hole size. This is not only cumbersome and time-consuming, but it also interrupts the production process and reduces processing efficiency. Furthermore, frequent disassembly and replacement of sieve plates can lead to wear and tear on equipment components, increasing maintenance costs. Improper operation during replacement can also cause sieve plate installation deviations, affecting screening accuracy.
[0004] In view of this, we propose a grading and screening device with adjustable sieve aperture for processing Chinese herbal medicine slices. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a grading and screening device with adjustable sieve aperture for processing Chinese herbal medicine slices.
[0006] The technical solution of this utility model is:
[0007] A grading and screening device with adjustable sieve aperture for processing Chinese herbal medicine slices includes a screening box. Inside the screening box is a main sieve plate that is inclined to the right and lower to the left. The main sieve plate has several screening areas, and the aperture of the sieve holes is larger closer to the right. A protective plate is provided below each screening area of the main sieve plate. Inside each protective plate is a sieve aperture adjustment plate that can move along the main sieve plate. An electric telescopic rod with a piston rod connected to the sieve aperture adjustment plate is fixedly installed on the outer wall of the protective plate. As the piston rod of the electric telescopic rod moves to the right, the holes on the sieve aperture adjustment plate are aligned with the sieve holes on the main sieve plate until the sieve aperture adjustment plate completely covers the sieve holes. When the sieve hole adjustment plate is moved by the electric telescopic rod, the alignment of the holes on the adjustment plate with the sieve holes of the main sieve plate can be flexibly adjusted until the sieve holes are completely covered. This allows for precise control of the screening specifications according to the particle size requirements of the medicinal slices, meeting different grading standards. The plate's blocking function can also pause the screening operation in the corresponding area at any time, improving the flexibility and accuracy of the screening operation, effectively avoiding the mixing of medicinal slices of different particle sizes, and ensuring the quality of grading and screening.
[0008] As a preferred technical solution, a spring is fixedly installed at each of the four corners of the top of the main screen plate, and a connecting rod is fixedly installed at the top of each spring. The top of the connecting rod is fixed to the inner wall of the top of the screening box, thus forming an elastic suspension structure for the main screen plate.
[0009] As a preferred technical solution, a feeding hopper is fixedly installed on the top of the screening box near the right side. This provides a convenient and centralized feeding channel for adding Chinese herbal medicine pieces.
[0010] As a preferred technical solution, a discharge port is provided at the bottom of the screening box below each protective plate, and a corrugated cover is fixedly installed between the protective plate and the discharge port. The discharge port provides an independent discharge channel for the medicinal slices screened in each screening area, ensuring that medicinal slices of different particle sizes are collected separately and avoiding secondary mixing.
[0011] As a preferred technical solution, a support leg is fixedly installed at each of the four corners of the bottom of the screening box, providing a stable support foundation for the entire screening device.
[0012] As a preferred technical solution, a collection box is provided directly below each feeding port of the screening box, and the collection box is set up independently. This realizes the independent collection of Chinese herbal medicine pieces of different particle sizes after grading.
[0013] As a preferred technical solution, a vibration motor is fixedly installed on the top of the sieve plate. Installing the vibration motor on the top of the sieve plate provides a stable vibration power source for the sieve plate, which significantly enhances the screening ability of the sieve plate. A flexible connecting plate is fixedly installed between the right end of the sieve plate and the inner wall of the right side of the screening box, which not only ensures the movement space of the sieve plate when it vibrates, but also effectively seals the gap between the sieve plate and the screening box.
[0014] As a preferred technical solution, a waste outlet is provided on the left side of the screening box, and the main screen plate extends into the waste outlet. A discharge guide plate is fixed on the outer left wall of the screening box below the waste outlet. By providing a waste outlet on the left side of the screening box and extending the main screen plate into it, along with the discharge guide plate below the waste outlet, the large-diameter waste particles that have not passed through any screen holes are centrally discharged.
[0015] As a preferred technical solution, a side sliding strip is integrally formed on both the front and rear sides of the screen aperture adjusting plate, and the side sliding strip is slidably connected to the inner wall of the guard plate. This provides precise guidance and limiting for the movement of the screen aperture adjusting plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] When the sieve hole adjustment plate is moved by the electric telescopic rod, the alignment degree between the holes on the adjustment plate and the sieve holes of the main sieve plate can be flexibly adjusted until the sieve holes are completely covered. This not only allows for precise control of the screening specifications according to the particle size requirements of the medicinal slices to meet different grading standards, but also allows for the suspension of screening operations in the corresponding area at any time through the blocking function of the adjustment plate, improving the flexibility and accuracy of the screening operation, effectively avoiding the mixing of medicinal slices of different particle sizes, and ensuring the quality of grading and screening. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the screening box in this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the protective plate in this utility model;
[0021] Figure 4 In this utility model Figure 2 Enlarged view of point A in the image;
[0022] The meanings of the labels in the diagram are as follows:
[0023] 1. Screening box; 10. Discharge guide plate; 11. Connecting rod; 12. Spring; 13. Main screen plate; 130. Flexible connecting plate; 14. Vibration motor; 15. Corrugated cover; 16. Protective plate; 160. Screen hole adjustment plate; 161. Side sliding bar; 17. Electric telescopic rod; 2. Support leg; 3. Feeding hopper; 4. Collection box. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0025] Please see Figures 1-4 This utility model provides a technical solution:
[0026] A grading and screening device with adjustable sieve aperture for processing Chinese herbal medicine slices includes a screening box 1. Inside the screening box 1 is a main sieve plate 13 that is inclined to the right and lower to the left. The main sieve plate 13 has several screening areas, and the aperture of the sieve holes is larger closer to the right. A guard plate 16 is provided below each screening area of the main sieve plate 13. Inside each guard plate 16 is a sieve aperture adjustment plate 160 that can move along the main sieve plate 13. An electric telescopic rod 17 connected to the sieve aperture adjustment plate 160 is fixedly installed on the outer wall of the guard plate 16. When the piston rod of the electric telescopic rod 17 moves to the right, the holes on the sieve aperture adjustment plate 160 are aligned with the sieve holes on the main sieve plate 13 until the sieve aperture adjustment plate 160 completely covers the sieve holes. When the sieve hole adjustment plate 160 is moved by the electric telescopic rod 17, the alignment of the holes on the adjustment plate with the sieve holes of the main sieve plate 13 can be flexibly adjusted until the sieve holes are completely covered. This allows for precise control of the screening specifications according to the particle size requirements of the medicinal slices, meeting different grading standards. The plate's blocking function also allows for the suspension of screening operations in the corresponding area at any time, improving the flexibility and accuracy of the screening operation, effectively preventing the mixing of medicinal slices of different particle sizes, and ensuring the quality of grading and screening.
[0027] In a preferred embodiment, a spring 12 is fixedly installed at each of the four corners of the top of the main screen plate 13, and a connecting rod 11 is fixedly installed at the top of each spring 12. The top of the connecting rod 11 is fixed to the inner wall of the top of the screening box 1, thus forming an elastic suspension structure for the main screen plate 13.
[0028] In a preferred embodiment, a feeding hopper 3 is fixedly installed on the top of the screening box 1 near the right side. This provides a convenient and centralized feeding channel for adding Chinese herbal medicine pieces.
[0029] In a preferred embodiment, the bottom of the screening box 1 has a discharge port located below each protective plate 16, and a corrugated cover 15 is fixedly installed between the protective plate 16 and the discharge port. The discharge port provides an independent discharge channel for the medicinal slices screened in each screening area, ensuring that medicinal slices of different particle sizes are collected separately and avoiding secondary mixing.
[0030] In this preferred embodiment, a support leg 2 is fixedly installed at each of the four corners of the bottom of the screening box 1, providing a stable support foundation for the entire screening device.
[0031] In a preferred embodiment, a collection box 4 is provided directly below each feeding port of the screening box 1, and the collection box 4 is set up independently. This enables the independent collection of Chinese herbal medicine pieces of different particle sizes after grading.
[0032] As a preferred embodiment, a vibration motor 14 is fixedly installed on the top of the sieve plate. Installing the vibration motor 14 on the top of the sieve plate provides a stable vibration power source for the sieve plate, which significantly enhances the screening ability of the sieve plate. A flexible connecting plate 130 is fixedly installed between the right end of the sieve plate and the inner wall of the right side of the screening box 1, which not only ensures the movement space of the sieve plate when it vibrates, but also effectively seals the gap between the sieve plate and the screening box 1.
[0033] In a preferred embodiment, a waste outlet is provided on the left side of the screening box 1, and the main screen plate 13 extends into the waste outlet. A discharge guide plate 10 is fixed on the outer left side wall of the screening box 1 below the waste outlet. By providing a waste outlet on the left side of the screening box 1 and extending the main screen plate 13 into the waste outlet, in conjunction with the discharge guide plate 10 below the waste outlet, the large-diameter waste that has not passed through any screen holes is discharged in a concentrated manner.
[0034] In a preferred embodiment, a side slide bar 161 is integrally formed on both the front and rear sides of the sieve hole adjusting plate 160, and the side slide bar 161 is slidably connected to the inner wall of the guard plate 16. This provides precise guidance and limiting for the movement of the sieve hole adjusting plate 160.
[0035] In use, the adjustable sieve hole grading and screening device for processing Chinese herbal medicine slices of this utility model first adjusts the sieve hole adjustment plate 160 of each screening area by means of electric telescopic rod 17 (side sliding bar 161 ensures smooth movement) so that the hole of the adjustment plate is aligned with the sieve hole of the main sieve plate 13 (or blocked to close the channel), and preset screening specifications are set; then the medicinal slices are added through feeding hopper 3 so that they fall on the right end of the main sieve plate 13 which is higher on the right and lower on the left. After starting the vibration motor 14, the vibration of the motor is transmitted to the sieve plate through the elastic structure of spring 12-connecting rod 11, so that the medicinal slices slide to the left along the sieve plate. During the process, the medicinal slices with suitable particle size pass through the sieve holes with gradually increasing diameter from right to left, and fall into the independent collection box 4 below through the guard plate 16, the discharge port and the corrugated cover 15; the large-diameter waste material that cannot pass through the sieve hole slides to the waste port on the left and is discharged through the discharge guide plate 10. During screening, the flexible connecting plate 130 seals to prevent material leakage, and the support leg 2 ensures the stability of the equipment, and finally achieves accurate grading and screening and separation of waste.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A grading and screening device with adjustable sieve aperture for processing Chinese herbal medicine slices, characterized in that: The system includes a screening box (1), inside which is a main screen plate (13) that is inclined to the right and lower to the left. The main screen plate (13) has several screening areas, and the screen holes closer to the right have larger diameters. The main screen plate (13) is provided with a guard plate (16) below each screening area. Each guard plate (16) is provided with a screen hole adjustment plate (160) that can move along the main screen plate (13). An electric telescopic rod (17) with a piston rod connected to the screen hole adjustment plate (160) is fixedly installed on the outer wall of the guard plate (16). When the piston rod of the electric telescopic rod (17) moves to the right, the holes on the screen hole adjustment plate (160) are aligned with the screen holes on the main screen plate (13) until the screen hole adjustment plate (160) completely covers the screen holes.
2. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 1, characterized in that: A spring (12) is fixedly installed at the top of the main screen plate (13) near the four corners. A connecting rod (11) is fixedly installed at the top of each spring (12). The top of the connecting rod (11) is fixed to the inner wall of the top of the screening box (1).
3. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 2, characterized in that: A feeding hopper (3) is fixedly installed on the top of the screening box (1) near the right side.
4. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 3, characterized in that: The bottom of the screening box (1) is provided with a discharge port located below each guard plate (16), and a corrugated cover (15) is fixedly installed between the guard plate (16) and the discharge port.
5. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 4, characterized in that: Each of the four corners of the bottom of the screening box (1) is fixedly equipped with a support leg (2).
6. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 5, characterized in that: Below the screening box (1), there is a collection box (4) located directly below each feeding port, and the collection box (4) is set up separately.
7. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 6, characterized in that: A vibration motor (14) is fixedly installed on the top of the sieve plate, and a flexible connecting plate (130) is fixedly installed between the right end of the sieve plate and the inner wall of the right side of the screening box (1).
8. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 7, characterized in that: The screening box (1) has a waste port on the left side, and the main screen plate (13) extends into the waste port. The outer wall of the left side of the screening box (1) is fixed with a discharge guide plate (10) below the waste port.
9. The grading and screening device with adjustable sieve aperture for processing traditional Chinese medicine decoction pieces as described in claim 8, characterized in that: The screen hole adjusting plate (160) has a side sliding strip (161) integrally formed on both the front and rear sides, and the side sliding strip (161) is slidably connected to the inner wall of the guard plate (16).