A screening device for processing rhizome traditional Chinese medicine decoction pieces

Abstract

The application discloses a kind of for rhizome traditional Chinese medicine decoction piece processing screening device, belong to screening device technical field, including box, first discharge port is opened in one side of box, further include pre-screening mechanism, pre-screening mechanism is set in the top of box, screening mechanism, screening mechanism includes equidistance symmetry and is opened in the inside of box two sides several long grooves, short groove is opened between the two long grooves of being located in the same side of box and adjacent, the inside of box is equidistantly provided with several first screening column, between two adjacent first screening column, second screening column is provided, the both ends of first screening column are fixedly connected with first mounting rod, the both ends of second screening column are fixedly connected with second mounting rod, first mounting rod is contained in long groove, second mounting rod is contained in short groove, vibration drive assembly is provided in the inside of box, the present application solves the problem that existing screening device cannot effectively screen rhizome traditional Chinese medicine decoction piece, in turn, leading to rhizome traditional Chinese medicine decoction piece screening efficiency is lower and screening effect is poor.

Description

Technical Field

[0001] This invention belongs to the technical field of sieving devices, and particularly relates to a sieving device for processing root and rhizome Chinese medicinal slices. Background Technology

[0002] Traditional Chinese medicine (TCM) decoction pieces are TCM herbs that have been processed according to TCM theory and processing methods and can be directly used in TCM clinical practice. They mainly include some processed TCM slices, whole medicinal herbs, and processed decoction pieces. In the production process of TCM decoction pieces, screening is an important step. It involves classifying and screening medicinal materials according to size and texture to ensure the uniformity and quality of the decoction pieces. By using sieves with different screening standards, medicinal materials of different specifications can be effectively separated, thereby meeting different clinical needs and preparation requirements. Screening not only helps to improve the utilization rate of medicinal materials, but also ensures the safety and effectiveness of medication for patients.

[0003] To meet the needs of efficient screening of Chinese medicinal herbs, various types of screening devices have emerged on the market. These devices use vibration and other methods in conjunction with screens of different apertures to achieve rapid screening of Chinese medicinal herbs, thereby effectively improving the production and screening efficiency of Chinese medicinal herbs. However, existing screening devices still have some problems in practical use. Due to the wide variety of Chinese medicinal herbs, existing screening devices can achieve good screening results when dealing with block-shaped Chinese medicinal herbs. However, when dealing with long columnar Chinese medicinal herbs such as rhizomes, traditional mesh screens will lose their screening ability due to the special shape characteristics of these herbs. Therefore, manual screening is required, which not only leads to low screening efficiency for rhizomes but also affects the screening effect. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a screening device for processing root and rhizome Chinese medicinal herbs. It has the advantage of being able to efficiently screen root and rhizome Chinese medicinal herbs, thereby effectively improving the screening efficiency and effect. This solves the problem that existing screening devices cannot effectively screen root and rhizome Chinese medicinal herbs, resulting in low screening efficiency and poor screening effect.

[0005] This invention is implemented as follows: a sieving device for processing root and rhizome Chinese medicinal herbs includes a housing with a first outlet on one side, and a pre-sieving mechanism disposed above the housing for pre-treating the root and rhizome Chinese medicinal herbs and ensuring that the herbs enter the housing evenly. The sieving mechanism includes several long grooves symmetrically and equidistantly arranged on both sides of the housing's interior, with short grooves between adjacent long grooves on the same side of the housing. Several... A first sieve column is provided, and a second sieve column is provided between two adjacent first sieve columns. A first mounting rod is fixedly connected to both ends of the first sieve column, and a second mounting rod is fixedly connected to both ends of the second sieve column. The first mounting rod is housed in the long sliding groove, and the second mounting rod is housed in the short sliding groove. A vibration drive assembly for driving the first and second sieve columns to vibrate up and down is provided inside the housing, and a discharge drive mechanism is provided. The discharge drive mechanism is provided above the housing and is used to drive the first sieve column to slide down.

[0006] In a preferred embodiment of the present invention, the vibration drive assembly includes a plurality of first vibrators fixedly connected to the upper part of the bottom surface of the housing, a discharge chamber with an inclined inner bottom surface fixedly connected above the first vibrators, a second discharge outlet being provided on the side of the discharge chamber near the first discharge outlet, a plurality of first drive plates corresponding to the positions of the long slide groove being telescopically provided above the discharge chamber, a plurality of first cavities corresponding to the positions of the long slide groove being symmetrically provided at equal intervals on both sides of the housing, the long slide groove communicating with the interior of the first cavities, the first drive plates being slidably inserted into the first cavities, the first mounting rod being rotatably connected to the upper part of the first drive plates, and a vibration drive unit for driving the vibration of the second sieve column being provided above the discharge chamber.

[0007] In a preferred embodiment of the present invention, the vibration drive unit includes a second drive plate fixedly connected above the discharge chamber and located between the two first drive plates on the same side. The inside of the housing is provided with a plurality of second slots symmetrically spaced on both sides, corresponding to the positions of the short sliding grooves. The short sliding grooves communicate with the interior of the second slots. The second drive plate is slidably inserted into the second slot. The second mounting rod is rotatably connected to the upper part of the second drive plate. A first spring is fixedly connected to the upper part of the second drive plate. The end of the first spring away from the second drive plate is fixedly connected to the upper surface of the second slot.

[0008] As a preferred embodiment of the present invention, the discharge drive mechanism includes a plurality of telescopic grooves formed above the discharge chamber and corresponding to the position of the first drive plate. The first drive plate is slidably inserted into the telescopic grooves. A second spring is provided in the telescopic grooves. The two ends of the second spring are fixedly connected to the lower end face of the first drive plate and the inner bottom face of the telescopic groove, respectively. A discharge drive assembly for pushing the first drive plate to retract is provided above the housing.

[0009] As a preferred embodiment of the present invention, the discharge drive assembly includes an electric push rod fixedly connected to both sides of the housing, the output end of the electric push rod being fixedly connected to a drive frame, a communicating hole being provided above the first slot cavity, a plurality of push plates being fixedly connected below the drive frame, the push plates being slidably inserted into the communicating hole, a third spring being fixedly connected to the lower end face of the push plate, and the end of the third spring away from the push plate being fixedly connected to the upper end face of the first drive plate.

[0010] In a preferred embodiment of the present invention, the pre-screening mechanism includes a reciprocating threaded rod rotatably connected to the top of the housing, a drive motor fixedly connected to one side of the housing, the output end of the drive motor fixedly connected to the end of the reciprocating threaded rod, a guide rod fixedly connected to the top of the housing, a slider plate slidably connected to the outside of the guide rod, the slider plate being drivenly connected to the reciprocating threaded rod, and a pre-screening component for pre-processing root and stem Chinese medicinal herbs is provided above the slider plate.

[0011] In a preferred embodiment of the present invention, the pre-screening assembly includes a second vibrator fixedly connected above the slider plate, a mounting frame fixedly connected above the second vibrator, a pre-screening box rotatably connected inside the mounting frame, the pre-screening box being inclined, a collection groove being provided inside the bottom plate of the pre-screening box, and a plurality of arc-shaped grooves being provided on the bottom surface of the pre-screening box, with a plurality of filter holes communicating with the inside of the collection grooves being provided in the arc-shaped grooves.

[0012] As a preferred embodiment of the present invention, limiting plates are fixedly connected to both sides below the pre-screening box. Both the limiting plates and the mounting frame are provided with through holes. A fixing screw is slidably inserted into the through hole, and a fixing nut is threaded to the end of the fixing screw.

[0013] In a preferred embodiment of the present invention, a drive rack is fixedly connected to both the first and second cavities. A drive gear is rotatably connected to both the side of the first drive plate away from the first sieve column and the side of the second drive plate away from the second sieve column. The drive gear is fixedly connected to the first mounting rod and the second mounting rod, respectively. The drive gear meshes with the drive rack. Soft short bristles are fixedly connected to the outer sides of both the first and second sieve columns.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention utilizes the combined use of the first drive plate, the second drive plate, and the discharge chamber to enable the equipment to more efficiently drive the first and second sieve columns to vibrate, thereby effectively improving the screening effect of the equipment. At the same time, the synchronous vibration of the discharge chamber makes it easier to discharge the root and rhizome Chinese herbal medicine pieces that fall onto the discharge chamber.

[0015] 2. This invention uses a push plate to drive the first screening column downwards, thereby ensuring better discharge effect of the equipment. At the same time, the combined use of the second and third springs can effectively ensure the efficient and stable operation of the equipment, thereby further improving the screening effect of the equipment.

[0016] 3. This invention utilizes the combined use of drive gears, drive racks, and soft short bristles to clean the surface of root and rhizome Chinese medicinal slices during sieving, thereby effectively improving the finished product quality of root and rhizome Chinese medicinal slices. Furthermore, since both the first and second sieve columns rotate slightly back and forth, it can effectively prevent root and rhizome Chinese medicinal slices from getting stuck during sieving and from being squeezed and damaged. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another structural perspective provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the pre-screening component provided in an embodiment of the present invention; Figure 4 This is a front sectional view provided in an embodiment of the present invention; Figure 5 This is provided by the embodiments of the present invention. Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a left-side full sectional view of the second screening column provided in an embodiment of the present invention; Figure 7 This is provided by the embodiments of the present invention. Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a left-side full sectional view of the first screening column provided in an embodiment of the present invention; Figure 9 This is provided by the embodiments of the present invention. Figure 8 A magnified view of a section at point C; Figure 10 This is a schematic diagram of the internal structure of the first and second slots provided in an embodiment of the present invention.

[0018] In the diagram: 1. Box body; 2. First screening column; 3. Second screening column; 4. First mounting rod; 5. Second mounting rod; 6. First vibrator; 7. Discharge chamber; 8. First drive plate; 9. Second drive plate; 10. First spring; 11. Second spring; 12. Electric push rod; 13. Drive frame; 14. Push plate; 15. Third spring; 16. Reciprocating threaded rod; 17. Drive motor; 18. Guide rod; 19. Sliding plate; 20. Second vibrator; 21. Mounting frame; 22. Pre-screening box; 23. Limiting plate; 24. Fixing screw; 25. Fixing nut; 26. Drive rack; 27. Drive gear; 28. Soft short bristles. Detailed Implementation

[0019] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] refer to Figures 1 to 10 This invention provides a sieving device for processing root and rhizome Chinese medicinal herbs, comprising a housing 1 with a first outlet on one side, and a pre-sieving mechanism disposed above the housing 1 for pre-treating the root and rhizome Chinese medicinal herbs and ensuring they uniformly enter the housing 1. The sieving mechanism includes several long sliding grooves symmetrically and equidistantly located on both sides of the housing 1, with short sliding grooves between adjacent long sliding grooves on the same side of the housing 1. Several first sieves are equidistantly arranged inside the housing 1. The first sieve medicine column 2 is provided with a second sieve medicine column 3 between two adjacent first sieve medicine columns 2. The two ends of the first sieve medicine column 2 are fixedly connected to a first mounting rod 4, and the two ends of the second sieve medicine column 3 are fixedly connected to a second mounting rod 5. The first mounting rod 4 is housed in the long sliding groove, and the second mounting rod 5 is housed in the short sliding groove. The housing 1 is provided with a vibration drive assembly for driving the first sieve medicine column 2 and the second sieve medicine column 3 to vibrate up and down, and a discharge drive mechanism. The discharge drive mechanism is located above the housing 1 and is used to drive the first sieve medicine column 2 to slide down.

[0022] When it is necessary to screen root and rhizome Chinese medicinal materials, the pre-screening mechanism and vibration drive component are activated, and the root and rhizome Chinese medicinal materials are poured into the pre-screening mechanism. The pre-screening mechanism will pre-treat the root and rhizome Chinese medicinal materials inside, thereby removing excessively small impurities and soil from the root and rhizome Chinese medicinal materials. At the same time, the pre-screening mechanism will also evenly feed the pre-treated root and rhizome Chinese medicinal materials into the box 1, thereby effectively avoiding the accumulation of root and rhizome Chinese medicinal materials during screening.

[0023] The root and rhizome Chinese medicinal slices that enter the box 1 will fall onto the first sieve column 2 and the second sieve column 3. At this time, the activated vibration drive component will simultaneously drive the first sieve column 2 and the second sieve column 3 to vibrate up and down by relying on the long slide and the short slide, so that the smaller root and rhizome Chinese medicinal slices fall from between the first sieve column 2 and the second sieve column 3 under the action of vibration, and finally be discharged through the first discharge outlet.

[0024] After screening is completed and all the smaller root and stem medicinal herbs are removed, the remaining herbs on the first and second screening columns 2 and 3 are the larger root and stem medicinal herbs. The pre-screening mechanism is then closed and the discharge drive mechanism is activated. This mechanism pushes the first screening column 2 downward along the long slide groove, thereby widening the gap between the first and second screening columns 2 and 3. As the gap widens, the larger root and stem medicinal herbs fall out and are discharged through the first discharge outlet. During this process, the vibration drive component continuously drives the second screening column 3 to vibrate, making it easier for the larger root and stem medicinal herbs to fall out and be discharged.

[0025] This setup allows for the pre-screening of root and rhizome medicinal herbs using a pre-screening mechanism, ensuring the herbs are evenly distributed into the housing 1. This effectively improves the screening quality of root and rhizome medicinal herbs, preventing accumulation and excessive impurities that could negatively impact screening efficiency. Furthermore, the combined use of the first screening column 2, the second screening column 3, the vibration drive assembly, and the discharge drive mechanism makes the equipment more suitable for screening root and rhizome medicinal herbs based on their shape characteristics, and efficiently discharges the screened herbs, further enhancing the screening effect.

[0026] Further, the vibration drive assembly includes a plurality of first vibrators 6 fixedly connected to the upper part of the bottom surface of the housing 1. A discharge chamber 7 with an inclined inner bottom surface is fixedly connected above the first vibrators 6. A second discharge outlet is opened on the side of the discharge chamber 7 near the first discharge outlet. A plurality of first drive plates 8 corresponding to the positions of the long slide groove are telescopically arranged above the discharge chamber 7. A plurality of first cavities corresponding to the positions of the long slide groove are symmetrically and equidistantly opened on both sides of the inside of the housing 1. The long slide groove communicates with the interior of the first cavities. The first drive plates 8 are slidably inserted into the first cavities. The first mounting rod 4 is rotatably connected to the upper part of the first drive plate 8. The discharge chamber... A vibration drive unit for driving the second sieve column 3 to vibrate is provided above the discharge chamber 7. The vibration drive unit includes a second drive plate 9 fixedly connected above the discharge chamber 7 and located between the two first drive plates 8 on the same side. Several second slots corresponding to the positions of the short slide grooves are symmetrically opened on both sides of the box body 1. The short slide grooves are connected to the interior of the second slots. The second drive plate 9 is slidably inserted into the second slot. The second mounting rod 5 is rotatably connected to the upper part of the second drive plate 9. A first spring 10 is fixedly connected to the upper part of the second drive plate 9. The end of the first spring 10 away from the second drive plate 9 is fixedly connected to the upper end face of the second slot.

[0027] When sieving root and rhizome medicinal herbs, the first vibrator 6 drives the discharge chamber 7 and its upper first drive plate 8 and second drive plate 9 to vibrate. This, in turn, drives the first sieve column 2 and the second sieve column 3 to vibrate and sieve. During this process, the first spring 10 stabilizes the vibration of the second sieve column 3. The smaller root and rhizome medicinal herbs that are sieved fall onto the bottom slope of the discharge chamber 7 and are discharged sequentially through the second and first discharge outlets as the discharge chamber 7 vibrates. When it is time to discharge the sieved herbs... When larger root and stem medicinal herbs are processed, the discharge drive mechanism is activated, which pushes the first drive plate 8 to contract, thereby widening the gap between the first sieve column 2 and the second sieve column 3, and thus allowing the larger root and stem medicinal herbs that have been screened to be discharged. Through this setting, the first drive plate 8, the second drive plate 9, and the discharge chamber 7 can be used in combination to make the equipment more efficient in vibrating the first sieve column 2 and the second sieve column 3, thereby effectively improving the screening effect of the equipment. At the same time, the synchronous vibration of the discharge chamber 7 makes it easier to discharge the root and stem medicinal herbs that fall onto the discharge chamber 7.

[0028] Furthermore, the discharge drive mechanism includes several telescopic slots located above the discharge chamber 7 and corresponding to the position of the first drive plate 8. The first drive plate 8 is slidably inserted into the telescopic slots. A second spring 11 is provided in the telescopic slots. The two ends of the second spring 11 are fixedly connected to the lower end face of the first drive plate 8 and the inner bottom face of the telescopic slot, respectively. A discharge drive assembly for pushing the first drive plate 8 to retract is provided above the housing 1. The discharge drive assembly includes electric push rods 12 fixedly connected to both sides of the housing 1. A drive frame 13 is fixedly connected to the output end of the electric push rod 12. A connecting hole is provided above the first slot cavity. Several push plates 14 are fixedly connected below the drive frame 13. The push plates 14 are slidably inserted into the connecting holes. A third spring 15 is fixedly connected to the lower end face of the push plate 14. The end of the third spring 15 away from the push plate 14 is fixedly connected to the upper end face of the first drive plate 8.

[0029] Under normal vibrating screening conditions, the elastic force of the second spring 11 is much greater than that of the third spring 15. Therefore, when the discharge chamber 7 drives the first drive plate 8 to vibrate the first screen medicine column 2, the third spring 15 will be compressed first, thereby ensuring the stable vibration of the first screen medicine column 2. During this process, the second spring 11 is not compressed due to force, thus ensuring the stable vibration drive of the first drive plate 8 on the first screen medicine column 2.

[0030] When it is necessary to discharge the larger root and stem Chinese medicinal herbs that have been screened out, the electric push rod 12 is activated, which drives the drive frame 13 to move the push plate 14 downward, thereby compressing the third spring 15. When the third spring 15 reaches its compression limit, as the push plate 14 continues to move downward, the first drive plate 8 is pushed, which in turn moves the first screen column 2 downward and compresses the second spring 11, thereby widening the gap between the first screen column 2 and the second screen column 3, allowing the larger root and stem Chinese medicinal herbs to be discharged. After the larger root and stem Chinese medicinal herbs have been completely discharged, the first drive plate 8 can be reset. It should be noted that when the first drive plate 8 moves downward to its limit position, the second spring 11 still has a certain compression capacity, thereby ensuring that the discharge chamber 7 can also vibrate normally in this state.

[0031] This setup allows the push plate 14 to drive the first screening column 2 downwards, ensuring better discharge performance. Meanwhile, the combined use of the second spring 11 and the third spring 15 effectively ensures efficient and stable operation of the equipment, further improving the screening effect.

[0032] Furthermore, the pre-screening mechanism includes a reciprocating threaded rod 16 rotatably connected to the top of the housing 1. A drive motor 17 is fixedly connected to one side of the housing 1. The output end of the drive motor 17 is fixedly connected to the end of the reciprocating threaded rod 16. A guide rod 18 is fixedly connected to the top of the housing 1. A slider plate 19 is slidably connected to the outside of the guide rod 18. The slider plate 19 is drively connected to the reciprocating threaded rod 16. A pre-screening assembly for pre-processing root and stem Chinese medicinal herbs is provided above the slider plate 19. The pre-screening assembly includes a second vibrator 20 fixedly connected to the top of the slider plate 19. A mounting frame 21 is fixedly connected above the second vibrator 20. A pre-screening box 22 is rotatably connected inside the mounting frame 21. The pre-screening box 22 is inclined. A collection groove is opened inside the bottom plate of the pre-screening box 22. Several arc-shaped grooves are opened on the inner bottom surface of the pre-screening box 22. Several filter holes communicating with the inside of the collection groove are opened in the arc-shaped grooves.

[0033] When pre-screening root and rhizome Chinese medicinal herbs, the herbs are poured into the pre-screening box 22, and the second vibrator 20 is activated. The vibrator drives the pre-screening box 22 to vibrate through the mounting frame 21. This causes impurities and soil in the root and rhizome Chinese medicinal herbs to pass through the filter holes and enter the collection tank under the action of vibration. The root and rhizome Chinese medicinal herbs, after removing impurities and soil, fall from the lower side of the pre-screening box 22 into the box body 1 under the action of vibration, thus carrying out the screening operation. During this process, the arc-shaped groove makes the root and rhizome Chinese medicinal herbs more inclined to be parallel to the axis of the first sieve column 2, so that the root and rhizome Chinese medicinal herbs are more likely to fall between the first sieve column 2 and the second sieve column 3 for screening, thereby further ensuring the screening quality of root and rhizome Chinese medicinal herbs.

[0034] While the pre-screening box 22 is pre-treating the root and rhizome Chinese medicinal materials, the drive motor 17 is started, which drives the reciprocating threaded rod 16 to rotate. This drives the slider plate 19, which is restricted by the guide rod 18, to move the pre-screening box 22 back and forth above the box body 1. This allows the pre-treated root and rhizome Chinese medicinal materials to be spread more evenly inside the box body 1, preventing the root and rhizome Chinese medicinal materials from accumulating during screening and affecting the screening effect.

[0035] Furthermore, limiting plates 23 are fixedly connected to both sides below the pre-screening box 22. Both the limiting plates 23 and the mounting bracket 21 are provided with through holes. A fixing screw 24 is slidably inserted into the through hole, and a fixing nut 25 is threaded to the end of the fixing screw 24.

[0036] During normal use, the fixing screw 24 is inserted into the through hole to fix the pre-screening box 22 to the mounting frame 21. When the amount of mud and impurities collected in the collection tank reaches a certain amount, the fixing nut 25 is unscrewed from the end of the fixing screw 24 and the fixing screw 24 is pulled out. At this time, the pre-screening box 22 can be rotated so that the opening of the collection tank is tilted downwards, thereby cleaning the impurities and mud collected in the collection tank. After cleaning is completed, the operation can be reversed to fix the pre-screening box 22 and the mounting frame 21 again, thereby effectively improving the ease of use of the equipment and making it easier to clean the pre-treated impurities.

[0037] Furthermore, a drive rack 26 is fixedly connected to both the first and second cavities. A drive gear 27 is rotatably connected to both the side of the first drive plate 8 away from the first sieve column 2 and the side of the second drive plate 9 away from the second sieve column 3. The drive gear 27 is fixedly connected to the first mounting rod 4 and the second mounting rod 5 respectively. The drive gear 27 meshes with the drive rack 26. Soft short bristles 28 are fixedly connected to the outer sides of both the first sieve column 2 and the second sieve column 3.

[0038] While the first and second sieve columns 2 and 3 are driven to vibrate up and down, they simultaneously drive the drive gear 27 to move slightly up and down. Since the drive gear 27 meshes with the drive rack 26, the drive gear 27 is driven to drive the first and second sieve columns 2 and 3 to rotate slightly back and forth as the first and second sieve columns 2 and 3 rotate back and forth. As the first and second sieve columns 2 and 3 rotate back and forth, the soft short bristles 28 fixed on their outer side can clean the surface of the root and rhizome Chinese medicinal slices. Through this setting, the drive gear 27, drive rack 26 and soft short bristles 28 can be used in combination to clean the surface of the root and rhizome Chinese medicinal slices while screening, thereby effectively improving the quality of the finished product of the root and rhizome Chinese medicinal slices. Furthermore, since the first and second sieve columns 2 and 3 are both rotating slightly back and forth, it can effectively prevent the root and rhizome Chinese medicinal slices from getting stuck during screening and prevent the root and rhizome Chinese medicinal slices from being squeezed and damaged.

[0039] Working principle of the invention: When it is necessary to screen root and rhizome Chinese medicinal herbs, the pre-screening mechanism and vibration drive component must first be activated. Then, the root and rhizome Chinese medicinal herbs are poured into the pre-screening mechanism. The pre-screening mechanism will pre-process these herbs, remove small impurities and soil, and evenly feed them into the box 1, thereby effectively preventing the accumulation of Chinese medicinal herbs during screening.

[0040] The root and rhizome Chinese medicinal slices that enter the box 1 will fall onto the first sieve column 2 and the second sieve column 3. At this time, the activated vibration drive component will synchronously drive the first sieve column 2 and the second sieve column 3 to vibrate up and down under the action of the long slide and the short slide. This vibration will cause the smaller root and rhizome Chinese medicinal slices to fall between the first sieve column 2 and the second sieve column 3 and finally be discharged through the first outlet.

[0041] After the screening process is completed and all the smaller root and rhizome medicinal herbs have been removed, the larger root and rhizome medicinal herbs will remain on the first screening column 2 and the second screening column 3. At this time, the pre-screening mechanism is closed and the discharge drive mechanism is activated. This mechanism will push the first screening column 2 to slide down along the long chute, thereby increasing the gap between the first screening column 2 and the second screening column 3. As the gap gradually increases, the larger root and rhizome medicinal herbs will fall off and be discharged through the first discharge outlet. During this process, the vibration drive component will continuously make the second screening column 3 vibrate so as to discharge the larger root and rhizome medicinal herbs that have been screened out more smoothly.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sieving device for processing root and rhizome Chinese medicinal herbs, comprising a housing (1), wherein a first outlet is provided on one side of the housing (1), characterized in that: It also includes a pre-screening mechanism, which is located above the box (1) and is used to pre-treat the root and stem Chinese medicine slices and make the root and stem Chinese medicine slices evenly enter the box (1); The sieving mechanism includes several long sliding grooves symmetrically and equidistantly opened on both sides of the inside of the box (1), and a short sliding groove is opened between two adjacent long sliding grooves on the same side of the box (1). Several first sieving columns (2) are equidistantly arranged inside the box (1), and a second sieving column (3) is arranged between two adjacent first sieving columns (2). A first mounting rod (4) is fixedly connected to both ends of the first sieving column (2), and a second mounting rod (5) is fixedly connected to both ends of the second sieving column (3). The first mounting rod (4) is housed in the long sliding groove, and the second mounting rod (5) is housed in the short sliding groove. A vibration drive assembly for driving the first sieving column (2) and the second sieving column (3) to vibrate up and down is provided inside the box (1). Discharge drive mechanism, which is located above the box (1), is used to drive the first sieve column (2) to slide downward.

2. The sieving device for processing root and rhizome Chinese medicinal slices as described in claim 1, characterized in that: The vibration drive assembly includes several first vibrators (6) fixedly connected to the top of the inner bottom surface of the housing (1). A discharge chamber (7) with an inclined inner bottom surface is fixedly connected above the first vibrators (6). A second discharge outlet is opened on the side of the discharge chamber (7) near the first discharge outlet. Several first drive plates (8) corresponding to the position of the long slide are telescopically arranged above the discharge chamber (7). Several first cavities corresponding to the position of the long slide are symmetrically opened on both sides of the inside of the housing (1). The long slide communicates with the inside of the first cavity. The first drive plate (8) is slidably inserted into the first cavity. The first mounting rod (4) is rotatably connected to the top of the first drive plate (8). A vibration drive unit for driving the second sieve column (3) to vibrate is arranged above the discharge chamber (7).

3. The sieving device for processing root and rhizome Chinese medicinal slices as described in claim 2, characterized in that: The vibration drive unit includes a second drive plate (9) fixedly connected above the discharge chamber (7) and located between the two first drive plates (8) on the same side. The box body (1) has several second slots symmetrically opened on both sides at equal intervals, corresponding to the positions of the short slide grooves. The short slide grooves are connected to the interior of the second slots. The second drive plate (9) is slidably inserted into the second slot. The second mounting rod (5) is rotatably connected to the upper part of the second drive plate (9). A first spring (10) is fixedly connected to the upper part of the second drive plate (9). The end of the first spring (10) away from the second drive plate (9) is fixedly connected to the upper end face of the second slot.

4. A sieving device for processing root and rhizome Chinese medicinal slices as described in claim 2, characterized in that: The discharge drive mechanism includes several telescopic grooves opened above the discharge chamber (7) and corresponding to the position of the first drive plate (8). The first drive plate (8) is slidably inserted into the telescopic groove. A second spring (11) is provided in the telescopic groove. The two ends of the second spring (11) are fixedly connected to the lower end face of the first drive plate (8) and the inner bottom face of the telescopic groove, respectively. A discharge drive assembly for pushing the first drive plate (8) to retract is provided above the box body (1).

5. A sieving device for processing root and rhizome Chinese medicinal slices as described in claim 4, characterized in that: The discharge drive assembly includes an electric push rod (12) fixedly connected to both sides of the housing (1). The output end of the electric push rod (12) is fixedly connected to a drive frame (13). A connecting hole is provided above the first cavity. Several push plates (14) are fixedly connected below the drive frame (13). The push plates (14) are slidably inserted into the connecting hole. A third spring (15) is fixedly connected to the lower end face of the push plate (14). The end of the third spring (15) away from the push plate (14) is fixedly connected to the upper end face of the first drive plate (8).

6. The sieving device for processing root and rhizome Chinese medicinal slices as described in claim 1, characterized in that: The pre-screening mechanism includes a reciprocating threaded rod (16) rotatably connected to the top of the housing (1). A drive motor (17) is fixedly connected to one side of the housing (1). The output end of the drive motor (17) is fixedly connected to the end of the reciprocating threaded rod (16). A guide rod (18) is fixedly connected to the top of the housing (1). A slider plate (19) is slidably connected to the outside of the guide rod (18). The slider plate (19) is connected to the reciprocating threaded rod (16) in a transmission connection. A pre-screening component for pre-processing root and stem Chinese medicine slices is provided above the slider plate (19).

7. A sieving device for processing root and rhizome Chinese medicinal slices as described in claim 6, characterized in that: The pre-screening assembly includes a second vibrator (20) fixedly connected above the slider plate (19). A mounting frame (21) is fixedly connected above the second vibrator (20). A pre-screening box (22) is rotatably connected inside the mounting frame (21). The pre-screening box (22) is inclined. A collection groove is opened inside the bottom plate of the pre-screening box (22). Several arc-shaped grooves are opened on the bottom surface of the pre-screening box (22). Several filter holes communicating with the inside of the collection groove are opened in the arc-shaped grooves.

8. A sieving device for processing root and rhizome Chinese medicinal slices as described in claim 7, characterized in that: The pre-screening box (22) is fixedly connected to two sides below the limiting plate (23). Both the limiting plate (23) and the mounting bracket (21) are provided with through holes. A fixing screw (24) is slidably inserted into the through hole. A fixing nut (25) is threaded to the end of the fixing screw (24).

9. A sieving device for processing root and rhizome Chinese medicinal slices as described in claim 3, characterized in that: A drive rack (26) is fixedly connected in both the first and second slots. A drive gear (27) is rotatably connected on the side of the first drive plate (8) away from the first sieve column (2) and on the side of the second drive plate (9) away from the second sieve column (3). The drive gear (27) is fixedly connected to the first mounting rod (4) and the second mounting rod (5) respectively. The drive gear (27) meshes with the drive rack (26). Soft short bristles (28) are fixedly connected to the outside of both the first sieve column (2) and the second sieve column (3).

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