Traditional Chinese medicine material raw material impurity removing and screening vibrating screen frame device

CN224778630UActive Publication Date: 2026-09-22CHENGDU TIANSHENG TRADITIONAL CHINESE MEDICINE PHARM CO LTD
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Patent Information

Application Number
CN202522311702.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-09-22
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0002]中药材在采摘、晾晒、存储过程中,易混入块状杂质(如泥土结块、枯枝、石子)、轻质杂质(如灰尘、绒毛、碎末)等异物,这些杂质不仅会影响中药材的纯度与品质,还可能在后续炮制、提取环节中干扰有效成分分离,甚至引发质量安全风险,因此中药材原料的去杂筛选是中药材加工前的关键工序

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Abstract

The utility model relates to traditional chinese medicinal material raw material removes miscellaneous screening vibration screen frame device, including the box of device main part. The hollow inside of box is provided with vibration subassembly. Vibration subassembly includes vibration screen frame, with the first rotary lever of one end rotation connection of vibration screen frame and the second rotary lever of vibration screen frame other end setting in opposition to first rotary lever. The slide of oblique extension is provided on the lateral wall of box. The both ends of first rotary lever are provided with the sliding block for sliding in slide. The eccentricity is connected in rotary wheel on second rotary lever. The fixed connection of drive motor has on the axis of rotary wheel. The utility model discloses through drive motor and drives rotary wheel eccentric rotation, and the sliding block of first rotary lever is combined in slide sliding, and the stable and continuous vibration power is provided for vibration screen frame, ensures that can efficiently screens out the blockiness impurity in traditional chinese medicinal material, realizes the preliminary physical removal of miscellaneous.
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Description

Technical Field

[0001] This utility model relates to the field of impurity removal technology for Chinese medicinal materials, and in particular to a vibrating sieve frame device for screening and removing impurities from raw materials of Chinese medicinal materials. Background Technology

[0002] During the harvesting, drying, and storage of Chinese medicinal materials, lumpy impurities (such as soil clumps, dead branches, and pebbles) and light impurities (such as dust, fuzz, and fragments) are easily mixed in. These impurities not only affect the purity and quality of the Chinese medicinal materials, but may also interfere with the separation of effective components in subsequent processing and extraction stages, and even cause quality and safety risks. Therefore, the removal and screening of impurities from raw materials of Chinese medicinal materials is a key process before processing.

[0003] Currently, the removal of impurities from Chinese medicinal herbs mainly relies on two methods: one is manual screening, which removes impurities through manual sorting and sieving. This method is labor-intensive, inefficient, and the screening accuracy is greatly affected by human experience, making it difficult to meet the needs of large-scale processing of Chinese medicinal herbs; the other is using ordinary vibrating screen equipment, which separates impurities from Chinese medicinal herbs through screen vibration. However, existing vibrating screen equipment still has significant shortcomings in practical applications.

[0004] Incomplete impurity removal and limited functionality: Most ordinary vibrating screens can only separate blocky impurities through the screen mesh size, and cannot remove light impurities such as dust and lint mixed in Chinese medicinal materials. They need to be paired with air separation and dust removal equipment, which leads to complicated procedures, increased equipment investment costs, and the connection of multiple devices can easily cause damage or secondary pollution to Chinese medicinal materials.

[0005] Dust prevention design deficiency: Some air separation processes do not have dust prevention structures designed for Chinese medicinal materials. The dust generated during the air separation process can easily spread into the air, which not only pollutes the operating environment and endangers the health of operators, but may also cause dust to re-adhere to the surface of Chinese medicinal materials, forming secondary pollution and failing to meet the cleanliness requirements for processing Chinese medicinal materials.

[0006] In summary, existing technologies for removing impurities from Chinese medicinal materials are insufficient to meet the demands of large-scale processing that requires "high efficiency, precision, low loss, and environmental friendliness." A screening device that integrates impurity removal functions, has a stable structure, and incorporates dustproof design is needed to address the shortcomings of existing technologies and improve the overall efficiency and quality of impurity removal and screening of Chinese medicinal materials.

[0007] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a vibrating sieve frame device for screening and removing impurities from Chinese medicinal materials, including a housing as the main body of the device. A vibration assembly is installed inside the hollow interior of the housing. The vibration assembly includes a vibrating sieve frame, a first rotating rod rotatably connected to one end of the vibrating sieve frame, and a second rotating rod disposed opposite the first rotating rod at the other end of the vibrating sieve frame. Inclined sliding tracks are provided on the side walls of the housing. Sliding blocks for sliding within the tracks are provided at both ends of the first rotating rod. The second rotating rod is eccentrically connected to a rotating wheel. A drive motor is fixedly connected to the axis of the rotating wheel.

[0009] According to a preferred embodiment, at least two sliding sleeves are provided vertically below the vibrating screen frame for rotatably engaging with the first rotating rod and the second rotating rod, respectively. The first rotating rod is rotatably connected to the slider. The second rotating rod is rotatably connected to the rotating wheel.

[0010] According to a preferred embodiment, the tilting direction of the vibrating screen frame is consistent with the tilting direction of the slide, and the extension line of the tilting direction passes through the axis of the rotating wheel.

[0011] According to a preferred embodiment, the vibrating screen frame is provided with guardrails on at least three sides to prevent the raw materials of Chinese medicinal herbs from falling off. The vibrating screen frame is inclined toward the side without guardrails.

[0012] According to a preferred embodiment, the vibrating screen frame is provided with a plurality of through holes for impurities to be screened and dropped. The plurality of through holes are distributed on the side of the vibrating screen frame away from the side without guardrails.

[0013] According to a preferred embodiment, a discharge plate is further provided inside the housing. The discharge plate extends obliquely to the lower vertical end of the side of the vibrating screen frame without the guardrail. The oblique direction of the discharge plate is opposite to the oblique direction of the vibrating screen frame.

[0014] According to a preferred embodiment, a fan and a corresponding air guide plate are arranged vertically below the blanking plate. One end of the air guide plate is located at the vertically downward end of the lowest point of the blanking plate. The air guide plate extends in an inclined direction opposite to that of the blanking plate.

[0015] According to a preferred embodiment, a waste trough is provided on the side of the air guide plate away from the fan. The highest point of the waste trough is flush with the highest point of the air guide plate. A collection trough is provided vertically below the vibrating screen frame corresponding to several through holes, and the collection trough is located vertically above the waste trough.

[0016] According to a preferred embodiment, a ventilation component is provided on the side of the box corresponding to the waste trough for guiding the gas blown out by the fan to the outside.

[0017] According to a preferred embodiment, a spray head is also provided on one side of the waste trough. Attached Figure Description

[0018] Figure 1 This is a simplified structural diagram of a vibrating sieve frame device for removing impurities from Chinese medicinal materials according to a preferred embodiment of this utility model.

[0019] Figure 2 This is a simplified structural diagram of a vibrating sieve frame device for removing impurities from raw materials of traditional Chinese medicine, provided by a preferred embodiment of this utility model.

[0020] Figure 3 This is a simplified structural diagram of a vibrating sieve frame device for removing impurities from Chinese medicinal materials, provided by a preferred embodiment of this utility model, after being cut.

[0021] Figure 4 This is a simplified structural diagram of the vibrating sieve frame device for removing impurities from Chinese medicinal materials, provided by a preferred embodiment of this utility model, after being cut open from another perspective.

[0022] Figure 5 This is a simplified structural diagram of the vibrating sieve frame device for removing impurities and screening Chinese medicinal materials from a preferred embodiment of the present invention, after being cut open from another perspective.

[0023] Figure 6 This is a simplified structural diagram of a vibration component according to a preferred embodiment of the present invention.

[0024] List of reference numerals

[0025] 100: Box body; 101: Slide rail; 102: Material discharge plate; 103: Fan; 104: Air guide plate; 105: Waste trough; 106: Collection trough; 107: Ventilation assembly; 200: Vibration assembly; 201: Vibrating screen frame; 202: First rotating rod; 203: Second rotating rod; 204: Sliding block; 205: Rotating wheel; 206: Drive motor; 207: Sliding sleeve; 208: Guard plate; 209: Through hole. Detailed Implementation

[0026] The following is a detailed explanation with reference to the accompanying drawings.

[0027] Example 1

[0028] This utility model provides a vibrating sieve frame device for removing impurities and screening raw materials of Chinese medicinal herbs, such as Figure 1 and Figure 2 As shown, the device includes a housing 100, which serves as the main body of the apparatus. A vibration assembly 200 is housed within the hollow interior of the housing 100. (As shown...) Figure 6As shown, the vibration assembly 200 includes a vibrating screen frame 201, a first rotating rod 202 rotatably connected to one end of the vibrating screen frame 201, and a second rotating rod 203 disposed at the other end of the vibrating screen frame 201 opposite to the first rotating rod 202. An inclined sliding track 101 is provided on the side wall of the housing 100. Sliding blocks 204 for sliding within the sliding track 101 are provided at both ends of the first rotating rod 202. The second rotating rod 203 is eccentrically connected to a rotating wheel 205. A drive motor 206 is fixedly connected to the axis of the rotating wheel 205. The vibrating screen frame 201 can screen out lumpy impurities in Chinese medicinal materials. This invention provides stable and continuous vibration power to the vibrating screen frame 201 by "driving the rotating wheel 205 to rotate eccentrically" and "the sliding blocks 204 of the first rotating rod 202 sliding within the sliding track 101," ensuring efficient removal of lumpy impurities from Chinese medicinal materials and achieving preliminary physical impurity removal. This invention uses a housing 100 as the main body of the device, providing fixed support for the vibration assembly 200 to prevent the entire device from shifting during vibration and ensuring the stability of the screening operation. Simultaneously, the core components are integrated within the housing 100, reducing interference from the external environment. It is understood that a feed inlet is provided at the top of the housing 100, and doors are provided corresponding to the waste trough 105, the collection trough 106, and the medicinal slice collection position.

[0029] According to a preferred embodiment, at least two sliding sleeves 207 are provided vertically below the vibrating screen frame 201 for rotatably engaging with the first rotating rod 202 and the second rotating rod 203, respectively. The first rotating rod 202 is rotatably connected to the slider 204. The second rotating rod 203 is rotatably connected to the rotating wheel 205. The sliding sleeves 207 "engage with the first rotating rod 202 and the second rotating rod 203 respectively and rotatably engage" reduce rigid friction between the rotating rods and the vibrating screen frame 201, reduce component wear, extend the service life of the device, and ensure smooth rotation of the rotating rods, avoiding jamming that affects the vibration effect. The "rotatable connection" design between the first rotating rod 202 and the slider 204, and between the second rotating rod 203 and the rotating wheel 205, further optimizes the motion coordination between components, ensures the stability of the vibration trajectory of the vibrating screen frame 201, and improves the accuracy of screening blocky impurities.

[0030] According to a preferred embodiment, the inclination direction of the vibrating screen frame 201 is consistent with the inclination direction of the slide rail 101, and the extension line of the inclination direction passes through the axis of the rotating wheel 205. The alignment of the inclination direction of the vibrating screen frame 201 with the slide rail 101, and the extension line passing through the axis of the rotating wheel 205, ensures uniform force distribution during screen frame vibration, preventing offset or swaying due to force imbalance, guaranteeing the stability of the screening process, and preventing the accumulation of medicinal materials on the screen frame. The matching of the inclination direction with the positioning of the vibration power source (axis of the rotating wheel 205) guides the medicinal materials to move slowly along the inclination direction during vibration, promoting the separation of medicinal materials from lumpy impurities and improving screening efficiency.

[0031] According to a preferred embodiment, the vibrating screen frame 201 is provided with guardrails 208 on at least three sides to prevent the raw materials of Chinese medicinal herbs from falling. The vibrating screen frame 201 is inclined toward the side without guardrails 208. The presence of guardrails 208 on at least three sides of the screen frame effectively prevents the Chinese medicinal herbs from falling from the sides during vibration, reducing material waste and preventing the falling herbs from interfering with the operation of other components. The inclination of the screen frame toward the side without guardrails 208 guides the screened Chinese medicinal herbs to move toward the side without guardrails while vibrating, providing material for subsequent steps such as the discharge plate 102 and the air separation by the fan 103, achieving seamless connection between screening and material conveying, and improving the continuity of the overall operation process.

[0032] According to a preferred embodiment, the vibrating screen frame 201 is provided with a plurality of through holes 209 for impurities to be screened and dropped. The through holes 209 are distributed on the side of the vibrating screen frame 201 away from the side without the guardrail 208. The through holes 209 being "distributed away from the side without the guardrail 208" allows lumpy impurities (or materials that do not meet size requirements) to fall precisely through the through holes 209, while qualified medicinal materials, moving towards the side without the guardrail, will not leak out from the through holes 209, achieving precise separation of "qualified materials and lumpy impurities" and improving screening accuracy. The reasonable distribution of the through holes 209 avoids localized accumulation of impurities on the screen frame, ensuring that the through holes 209 remain unobstructed during vibration, guaranteeing continuous and efficient screening operations, and reducing the frequency of downtime for cleaning due to impurity blockage.

[0033] According to a preferred embodiment, a discharge plate 102 is also provided inside the housing 100. The discharge plate 102 extends obliquely to the vertically downward end of the side of the vibrating screen frame 201 without the guardrail 208. The oblique direction of the discharge plate 102 is opposite to the oblique direction of the vibrating screen frame 201. The discharge plate 102 can accurately catch the Chinese medicinal materials flowing out from the screen frame, preventing the Chinese medicinal materials from falling directly to the bottom of the housing 100 and causing damage or dispersion, reducing material loss, and protecting the integrity of the Chinese medicinal materials. The oblique direction of the discharge plate 102 is opposite to that of the screen frame, which can guide the Chinese medicinal materials to slide slowly along the discharge plate 102, providing a "low-speed material state" for the subsequent air separation step of the blower 103, avoiding the material falling too fast and causing insufficient air separation, and ensuring the effect of secondary impurity removal.

[0034] According to a preferred embodiment, such as Figures 3 to 5As shown, a fan 103 and a corresponding air guide plate 104 are arranged vertically below the discharge plate 102. One end of the air guide plate 104 is located at the vertically downward end of the lowest point of the discharge plate 102. The air guide plate 104 extends in an inclined direction opposite to that of the discharge plate 102. The fan 103 is used to perform air separation of dust and impurities in the raw materials of Chinese medicinal materials. The fan 103, together with the air guide plate 104, achieves "air separation and impurity removal", which can separate light impurities such as dust and lint mixed in the Chinese medicinal materials. This forms "double impurity removal" with the "vibration to remove lumpy impurities" mentioned above, which greatly improves the purity of the Chinese medicinal materials and meets the higher requirements for the cleanliness of raw materials. The air guide plate 104 can accurately guide the airflow of the fan 103 to blow towards the Chinese medicinal materials, avoiding inaccurate impurity removal caused by airflow diffusion, and at the same time preventing dust and impurities from being blown to other areas of the housing 100, keeping the internal environment clean.

[0035] According to a preferred embodiment, a waste trough 105 is provided on the side of the air guide plate 104 away from the fan 103. The highest point of the waste trough 105 is flush with the highest point of the air guide plate 104. A collection trough 106 is provided vertically below the vibrating screen frame 201 corresponding to several through holes 209, and the collection trough 106 is located vertically above the waste trough 105. The waste trough 105 ensures that all light impurities generated by air separation can flow into the waste trough 105, avoiding impurity overflow; the collection trough 106 is located below the through holes 209 of the screen frame, and can accurately receive the blocky impurities falling from the vibrating screen, realizing the separate collection of "light impurities (dust) and blocky impurities", which facilitates subsequent waste treatment and avoids cross-contamination of different impurities. The layout of the collection trough 106 located vertically above the waste trough 105 makes full use of the internal space of the housing 100, making the device structure more compact and reducing the floor space occupied. At the same time, it avoids blocky impurities from damaging the waste trough 105 or interfering with the collection of light impurities when they fall, improving the rationality of the structure.

[0036] According to a preferred embodiment, a ventilation component 107 is provided on the side of the housing 100 corresponding to the waste trough 105 for guiding the gas blown by the fan 103 to the outside. The ventilation component 107 is used to prevent airflow turbulence, which could lead to dust dispersion. The ventilation component 107 guides the airflow blown by the fan 103 to the outside, preventing turbulent airflow circulation within the housing 100, preventing reverse airflow from affecting the air separation effect, and ensuring a stable and efficient air separation process. It effectively prevents dust-laden airflow from dispersing within the housing 100, preventing dust from adhering to the medicinal materials or equipment components, thus ensuring the purity of the medicinal materials, reducing the frequency of component cleaning, and preventing dust from overflowing from the gaps in the housing 100, thereby improving the working environment for operators.

[0037] According to a preferred embodiment, a spray head is also provided on one side of the waste trough 105. The spray head (not shown in the figure) can prevent dust from spreading. The spray head causes suspended dust particles to settle by "humidifying the air", which further enhances the dust prevention effect. Especially when cleaning the waste trough 105 or when the airflow fluctuates, it can effectively prevent dust from spreading to the outside, improve the environmental protection and safety of the device, and reduce pollution to the surrounding environment. As a supplementary dust prevention measure to the ventilation component 107, it forms a dual dust prevention guarantee of "airflow discharge + spray dust suppression", which completely solves the problem of dust diffusion during the air separation process and meets the stringent cleanliness requirements of the production environment.

[0038] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A vibrating sieve frame device for removing impurities and screening raw materials of Chinese medicinal herbs, characterized in that, The device includes a housing (100) as its main body, and a vibration assembly (200) is disposed inside the hollow interior of the housing (100). The vibration assembly (200) includes a vibrating screen frame (201), a first rotating rod (202) rotatably connected to one end of the vibrating screen frame (201), and a second rotating rod (203) disposed at the other end of the vibrating screen frame (201) opposite to the first rotating rod (202). The side wall of the housing (100) is provided with an inclined slide (101), and the two ends of the first rotating rod (202) are provided with sliders (204) for sliding in the slide (101). The second rotating rod (203) is eccentrically connected to the rotating wheel (205), and a drive motor (206) is fixedly connected to the axis of the rotating wheel (205).

2. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 1, characterized in that, The vibrating screen frame (201) is provided with at least two sliding sleeves (207) on its lower vertical side for rotatably engaging with the first rotating rod (202) and the second rotating rod (203), respectively. The first rotating rod (202) is rotatably connected to the slider (204), and the second rotating rod (203) is rotatably connected to the rotating wheel (205).

3. The vibrating sieve frame device for removing impurities from Chinese medicinal materials according to claim 2, characterized in that, The inclination direction of the vibrating screen frame (201) is consistent with the inclination direction of the slide rail (101), and the extension line of the inclination direction passes through the axis of the rotating wheel (205).

4. The vibrating sieve frame device for removing impurities from Chinese medicinal materials according to claim 3, characterized in that, The vibrating screen frame (201) is provided with guardrails (208) on at least three sides to prevent the raw materials of Chinese medicinal materials from falling. The vibrating screen frame (201) is inclined toward the side where the guardrails (208) are not provided.

5. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 4, characterized in that, The vibrating screen frame (201) is provided with a number of through holes (209) for impurities to be screened and fall off. The number of through holes (209) are distributed on the side of the vibrating screen frame (201) away from the side plate (208) that is not provided.

6. The vibrating sieve frame device for removing impurities from Chinese medicinal materials according to claim 5, characterized in that, The box (100) is also provided with a material drop plate (102), which extends obliquely to the vertical lower end of the vibrating screen frame (201) on the side without the guardrail (208), and the oblique direction of the material drop plate (102) is opposite to the oblique direction of the vibrating screen frame (201).

7. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 6, characterized in that, A fan (103) and a guide plate (104) corresponding to the fan (103) are provided vertically below the material drop plate (102). One end of the guide plate (104) is located at the vertically downward end of the lowest point of the material drop plate (102). The guide plate (104) extends in an inclined direction opposite to that of the material drop plate (102).

8. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 7, characterized in that, A waste trough (105) is provided on the side of the air guide plate (104) away from the fan (103), and the highest point of the waste trough (105) is flush with the highest point of the air guide plate (104). The vibrating screen frame (201) is provided with a collection trough (106) vertically below the several through holes (209), and the collection trough (106) is located vertically above the waste trough (105).

9. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 8, characterized in that, The box (100) is provided with a ventilation component (107) on the side corresponding to the waste trough (105) for the ventilation component (107) to guide the gas blown out by the fan (103) to the outside.

10. The vibrating sieve frame device for removing impurities from raw medicinal materials according to claim 9, characterized in that, A spray head is also provided on one side of the waste tank (105).