Traditional Chinese medicine decoction piece drying device
By combining a dual-zone conveyor belt design with a limiting frame guide plate, the problem of uneven drying of medicinal slices with varying thickness in traditional Chinese medicine decoction pieces drying equipment is solved, achieving uniformity in the drying quality of the medicinal slices and stability in their efficacy.
Patent Information
- Application Number
- CN202520472346.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing Chinese herbal medicine drying equipment results in inconsistent drying quality when processing herbs of uneven thickness, which affects the efficacy of the medicine.
The dual-zone conveyor belt design uses a combination of the first conveyor belt and the side conveyor belt to screen thick tablets. The tablet thickness and conveying speed are controlled by the combination of the limiting frame and the guide plate to ensure uniform drying.
This method ensures thorough drying of thick tablets, guarantees consistent drying quality, and improves the stability of drug efficacy.
Smart Images

Figure CN223896500U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of drying equipment technology, and in particular relates to a drying device for traditional Chinese medicine decoction pieces. Background Technology
[0002] Traditional Chinese medicine decoction pieces are processed Chinese medicinal materials that can be directly used in clinical practice or in the production of pharmaceutical preparations. During production, in order to facilitate storage, transportation and use, and to prevent the medicinal materials from deteriorating and ensure the stability of their efficacy, drying equipment is often used to dry them.
[0003] Currently, when drying Chinese medicinal herbs, a conveyor belt is used to dry them inside the drying equipment. However, the drying quality is affected by the thickness of the herbs. Some thicker herbs cannot be fully dried, resulting in inconsistent processing quality and affecting the efficacy of the medicine.
[0004] To address the aforementioned problems, this application proposes a drying device for traditional Chinese medicine decoction pieces. Utility Model Content
[0005] The purpose of this invention is to provide a drying device for traditional Chinese medicine decoction pieces, which solves the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a drying device for Chinese herbal medicine slices, including a dryer and a material frame at its front end;
[0008] The first conveyor belt is located at the bottom of the material frame. The dryer has a second conveyor belt located below the output end of the first conveyor belt to receive the tablets. Combined with the side conveyor belts on both sides inside the dryer, a dual-zone conveying system is formed to achieve the effect of screening thick tablets, while delaying the conveying of thick tablets to allow them to dry fully.
[0009] The fixed frame is located inside the front end of the dryer, near the output end of the first conveyor belt. A height limit plate is provided below it. Together with the distribution roller above the input end of the second conveyor belt, it controls the stacking thickness of the tablets to ensure uniform drying quality.
[0010] Furthermore, a limiting frame is provided above the second conveyor belt, located behind the distributing roller. An upwardly inclined receiving plate is provided in front of the limiting frame, forming a gap with the distributing roller for tablets of normal thickness to pass through.
[0011] Furthermore, an arc-shaped frame is provided in front of the dispensing roller. The arc-shaped frame has a three-sided structure. The two lower sides are arc-shaped surfaces that are respectively attached to the first conveyor belt and the dispensing roller, while the upper oblique surface is a flat surface used to allow the tablets to slide onto the surface of the dispensing roller.
[0012] Furthermore, the limiting frame has guide plates on both sides inside, which are inclined downwards and extend above the side conveyor belt to convey thick tablets to the top of the side conveyor belt for screening.
[0013] Furthermore, the guide plate is internally equipped with a rotating roller to prevent tablet jamming.
[0014] Furthermore, the lower part of the limiting frame is provided with a bevel to prevent obstruction of the conveying of tablets on the surface of the second conveyor belt.
[0015] Furthermore, the lower end of the fixed frame is equipped with an electric telescopic device for adjusting the height of the height-limiting plate at its movable end.
[0016] This utility model has the following beneficial effects:
[0017] This invention uses a guide plate to feed thicker tablets to a side conveyor belt. During the drying process, the tablets are conveyed in two zones via a second conveyor belt and a side conveyor belt, respectively conveying tablets of normal thickness and thicker tablets. This not only prevents thicker tablets from accumulating on top of normal tablets and affecting the drying quality, but also facilitates screening by the profile for subsequent processing.
[0018] This invention utilizes a dual-zone conveyor system. By adjusting the rotation speed, the side conveyor belt rotates at a lower speed than the second conveyor belt, thus creating conveyors with different speeds. This allows for a longer drying time for thicker tablets, ensuring thorough drying, uniform tablet quality, and normal efficacy.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the dryer of this utility model;
[0023] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the dryer of this utility model;
[0024] Figure 4This is a schematic diagram of the internal structure of the limiting frame of this utility model;
[0025] The attached diagram lists the components represented by each number as follows:
[0026] In the diagram: 1. Dryer; 2. Material frame; 3. First conveyor belt; 4. Second conveyor belt; 5. Side conveyor belt; 6. Distributor roller; 7. Connecting plate; 8. Limiting frame; 9. Fixing frame; 10. Height limit plate; 11. Electric telescopic device; 12. Arc frame; 13. Guide plate; 14. Roller; 15. Bevel. Detailed Implementation
[0027] 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.
[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] Please see Figure 1-4 As shown, this utility model is a drying device for Chinese herbal medicine slices, including a dryer 1 and a material frame 2 at its front end;
[0030] The first conveyor belt 3 is located at the bottom of the material frame 2. The dryer 1 has a second conveyor belt 4 located below the output end of the first conveyor belt 3. It is used to receive the tablets. Combined with the side conveyor belts 5 on both sides inside the dryer 1, it forms a dual-zone conveying system to achieve the effect of screening thick tablets and at the same time delaying the conveying of thick tablets so that they are fully dried.
[0031] The fixed frame 9 is located inside the front end of the dryer 1, near the output end of the first conveyor belt 3. A height limit plate 10 is provided below it. Together with the distribution roller 6 above the input end of the second conveyor belt 4, it controls the stacking thickness of the tablets to ensure uniform drying quality of the tablets.
[0032] This embodiment provides a device that can separate thick tablets and dry them thoroughly. By combining the second conveyor belt 4 with the side conveyor belt 5, a dual-zone conveying method is formed, which allows the thick tablets to be screened in advance and extends their heating time, thereby achieving a thorough drying effect. In addition, the thickness of the tablets piled on the surface of the second conveyor belt 4 can be controlled by the positioning of the height limiting plate 10, so that the heating is uniform and the drying quality is guaranteed.
[0033] Among them, a limiting frame 8 is provided above the second conveyor belt 4, located behind the distributing roller 6. An upwardly inclined receiving plate 7 is provided in front of the limiting frame 8, forming a gap with the distributing roller 6 for normal thickness tablets to pass through. The receiving plate 7 has a thin sheet structure, which allows thick tablets to easily avoid the gap and fall from above.
[0034] The feed roller 6 is provided with an arc-shaped frame 12 in front of it. The arc-shaped frame 12 has a three-sided structure. The two lower sides are arc-shaped surfaces that are respectively attached to the first feed belt 3 and the feed roller 6, while the upper side is a flat surface used to allow the tablets to slide onto the surface of the feed roller 6. There is a certain gap between the arc-shaped surface and the first feed belt 3 and the feed roller 6 to prevent jamming.
[0035] The limiting frame 8 has guide plates 13 on both sides inside, which are inclined downwards and extend to the top of the side conveyor belt 5. The lower end of the guide plate 13 is located above the inner end face of the side conveyor belt 5, which can directly convey the thick tablets to the top of the side conveyor belt 5 to form separation, thus forming a dual-zone conveying method.
[0036] The guide plate 13 has a roller 14 installed inside to reduce the frictional resistance of the tablets, allowing them to slide directly to the bottom and preventing jamming and accumulation.
[0037] The limiting frame 8 has a beveled edge 15 below it to prevent obstructing the conveying of tablets on the surface of the second conveyor belt 4. It also serves to gather tablets from the outer ring area to the middle area to prevent them from falling into the gap between the second conveyor belt 4 and the side conveyor belt 5.
[0038] The lower end of the fixed frame 9 is equipped with an electric telescopic device 11, which is used to drive the height limit plate 10 at its movable end to adjust the height up and down, so as to prevent the pills from piling up too high and entering the interior of the limit frame 8.
[0039] Understandably, this invention can directly separate thick tablets and extend their heating time to ensure they are fully dried, thus ensuring the quality of tablets of different thicknesses and guaranteeing the stability of the efficacy of thick tablets.
[0040] A specific application of the operation process in this embodiment is as follows: First, the tablets are received by the first conveyor belt 3 for the first stage of conveying. Then, the tablets are received by the inclined surface above the arc frame 12 and sent to the surface of the distributing roller 6. The distance between the height limit plate 10 and the distributing roller 6 is controlled by the electric telescopic device 11 below the fixed frame 9 to control the accumulation thickness of the tablets during conveying. Then, the tablets of normal thickness enter between the receiving plate 7 and the distributing roller 6 and fall to the second conveyor belt 4 for conveying and drying. The thicker tablets, when they come into contact with the end face of the receiving plate 7, are pushed by the tablets behind them and fall through the receiving plate 7 into the interior of the limiting frame 8. They are then guided by the guide plate 13 and the roller 14 to the side conveyor belt 5 for conveying and drying. This allows the tablets of normal thickness to be conveyed in the middle area, while the thicker tablets are conveyed on both sides, forming a dual-zone conveying system that facilitates the screening of tablets. At the same time, the side conveyor belt 5 can also slow down the conveying speed of the thicker tablets, allowing them to dry fully and ensuring the processing quality, while also ensuring the stability of the efficacy of the finished product.
[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A drying device for traditional Chinese medicine decoction pieces, comprising a dryer (1) and a material frame (2) at its front end, characterized in that: The first conveyor belt (3) is located at the bottom of the material frame (2). The dryer (1) is equipped with a second conveyor belt (4) located below the output end of the first conveyor belt (3) to receive the tablets. Combined with the side conveyor belts (5) on both sides inside the dryer (1), a dual-zone conveying is formed to achieve the effect of screening thick tablets, while delaying the conveying of thick tablets to dry them fully. The fixed frame (9) is located inside the front end of the dryer (1) near the output end of the first conveyor belt (3). A height limit plate (10) is provided below it. Combined with the distribution roller (6) above the input end of the second conveyor belt (4), the thickness of the tablet stack is controlled to ensure uniform tablet drying quality.
2. The drying device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: Above the second conveyor belt (4), there is also a limiting frame (8) located behind the distributing roller (6). In front of the limiting frame (8), there is an upwardly inclined connecting plate (7), which forms a gap with the distributing roller (6) for normal thickness tablets to pass through.
3. The drying device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The front of the dispensing roller (6) is provided with an arc-shaped frame (12). The arc-shaped frame (12) has a three-sided structure. The two lower sides are arc-shaped surfaces that are respectively attached to the first conveyor belt (3) and the dispensing roller (6), while the upper side is a flat surface used to allow the tablets to slide onto the surface of the dispensing roller (6).
4. The drying device for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The limiting frame (8) has guide plates (13) on both sides inside, which are inclined downwards and extend to the top of the side conveyor belt (5) to convey thick tablets to the top of the side conveyor belt (5) to form a sieve.
5. A drying device for traditional Chinese medicine decoction pieces according to claim 4, characterized in that: The guide plate (13) is internally fitted with a roller (14) to prevent tablet jamming.
6. The drying device for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The limiting frame (8) has a bevel (15) at the bottom to prevent obstruction of the conveying of tablets on the surface of the second conveyor belt (4).
7. The drying device for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The lower end of the fixed frame (9) is provided with an electric telescopic device (11) for driving the height limit plate (10) at its movable end to adjust the height up and down.