Medicinal material conveying and screening device

Abstract

The invention relates to the technical field of medicinal material conveying and screening, and provides a medicinal material conveying and screening device which comprises a screening tank and a conveying frame, a feeding port fixedly penetrates through the surface of the screening tank, a discharging port fixedly penetrates through the surface of the screening tank, and a screening device used for screening medicines is arranged at the top of the screening tank. The screening device comprises a drying mechanism, the drying mechanism fixedly penetrates through the top of the screening tank, a rotating shaft is rotatably installed on the inner wall of the screening tank, a pushing plate is fixedly installed on the circumferential face of the rotating shaft, an ash screening plate is fixedly installed on the surface of the end, away from the screening tank, of the conveying frame, and a fan is fixedly installed on the inner wall of the conveying frame. A material box is slidably mounted on the surface of the conveying frame, a first screening disc is fixedly mounted on the inner wall of the screening tank, and a second screening disc is fixedly mounted on the inner wall of the screening tank. By means of the technical scheme, the technical problem that in the prior art, material selection diversity of follow-up treatment can be affected is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of medicinal material transportation and screening, and in particular, to a medicinal material transportation and screening device. Background Art

[0002] The medicinal material conveying and screening device is used during the medicinal material production and processing to screen and sort medicinal materials of different types, sizes, and qualities. Its main function is to automatically sort the medicinal materials according to their morphological characteristics to improve production efficiency and medicinal material quality.

[0003] The patent with patent announcement number CN206652690U relates to a medicinal material conveying and screening device, including left and right support columns, and is characterized in that: a silo is fixedly installed on the top of the left and right support columns, and the bottom of the silo is provided with an elastic screen that can be retracted up and down. The middle section of the screen is hinged by a cylinder and can be convex and concave up and down. A discharge barrel is provided below the screen, and a conveyor belt is provided below the discharge barrel. Left and right discharge ports are provided on the left and right side walls of the silo, and the lower parts of the left and right discharge ports are respectively connected to discharge hoppers. This patent can quickly grade and screen Chinese medicinal materials, and the operation of lifting the elastic screen by the cylinder is simple and has a good limiting effect.

[0004] In the above patent, a silo is fixedly installed on the top of the left and right support columns, and the bottom of the silo is provided with an elastic screen that can be retracted up and down, which can quickly grade and screen Chinese medicinal materials. However, the classification of the particle size of the screened medicinal materials is not very detailed, which may affect the diversity of material selection in subsequent processing. For this reason, a medicinal material conveying and screening device with multi-category screening and conveying effects is designed. Summary of the Invention

[0005] To overcome the above-mentioned drawbacks, an embodiment of the present invention provides a medicinal material conveying and screening device, which solves the technical problem in the prior art that affects the diversity of material selection in subsequent processing.

[0006] According to one aspect, at least one embodiment of the present invention provides a medicinal material conveying and screening device, comprising a screening tank and a conveying frame, wherein the surface of the screening tank is fixedly penetrated by a feed port, the surface of the screening tank is fixedly penetrated by a discharge port, the top of the screening tank is provided with a screening device for screening the medicine, the screening device comprises a drying mechanism, the drying mechanism is fixedly penetrated by the top of the screening tank, the inner wall of the screening tank is rotatably mounted with a rotating shaft, the circumferential surface of the rotating shaft is fixedly mounted with a pushing plate, the surface of the conveying frame away from the screening tank is fixedly mounted with an ash screening plate, the inner wall of the conveying frame is fixedly mounted with a fan, the surface of the conveying frame is slidably mounted with a material box, the inner wall of the screening tank is fixedly mounted with a sieve plate 1, and the inner wall of the screening tank is fixedly mounted with a sieve plate 2, the medicine inside the screening tank is dried to avoid the medicinal materials from sticking due to moisture, ensure that the particles can smoothly pass through the sieve holes in the subsequent screening process, and at the same time prevent the medicinal materials from mildewing during the screening process, thereby ensuring the initial quality of the medicinal materials.

[0007] For example, in a medicinal material conveying and screening device provided by at least one embodiment of the present invention, the rotating shaft is connected to the output end of the motor, the propulsion plate is in contact with a sieve plate, the angle of the propulsion plate is set to an inclined angle, and the surface of the ash screening plate is provided with a filter hole for allowing only dust and very small impurities to pass through. The previous steps are repeated for screening, and by achieving precise separation of large and small particles, the filter holes avoid mixing of medicinal materials of different specifications, thereby meeting the requirements of different dosage forms for the particle size of medicinal materials.

[0008] The surface of the sieve plate 1 is provided with filter hole 2 for intercepting large pieces of medicine, and the surface of the sieve plate 2 is provided with filter hole 3 for intercepting smaller medicine. Dust or impurities in the medicine are blown away by the action of the fan, effectively removing light impurities and improving the purity of the medicine.

[0009] According to another aspect, at least one embodiment of the present invention also provides a medicinal material conveying and screening device, the circumferential surface of the rotating shaft is provided with an auxiliary device for assisting sieve plate 1 and sieve plate 2 in screening, the auxiliary device includes a threaded ring, the threaded ring is fixedly mounted on the circumferential surface of the rotating shaft, the inner wall of the screening tank is rotatably mounted with a gear, the surface of the gear is fixedly mounted with a rotating rod, the end of the gear away from the gear is rotatably mounted with a linkage rod, the inner wall of the screening tank is slidably penetrated by a knocking rod, the surface of the propulsion plate is fixedly mounted with a receiving plate, the surface of the propulsion plate is fixedly mounted with a conduction rod, the circumferential surface of the conveying frame is fixedly mounted with a rotating plate, the inner wall of the rotating plate is rotatably mounted with a rolling roller, the circumferential surface of the rolling roller is fixedly mounted with a roller, so as to realize the vibration effect of sieve plate 1 and sieve plate 2, thereby improving the efficiency and effect of drug screening.

[0010] The threaded ring is engaged with the gear, and the end of the linkage rod away from the rotating rod is rotatably connected to the end of the knocking rod away from the striking plate, thereby crushing larger particles into smaller particle sizes, which is convenient for the subsequent preparation of ultrafine drug powder.

[0011] For example, in a medicinal material conveying and screening device provided by at least one embodiment of the present invention, the circumferential surface of the rolling roller is provided with an anti-jamming groove to avoid jamming, and the rotating plate contacts the second sieve plate, while also being able to disperse sticky or easily agglomerated medicinal materials, thereby improving their processing effect.

[0012] The inner wall of the screening tank is provided with an anti-clogging device for preventing the sieve disc 2 from being blocked when screening fine drugs. The anti-clogging device includes a refining cone, which is fixedly mounted on the inner wall of the screening tank. A transmission wheel set is fixedly mounted on the circumferential surface of the crushing roller. An anti-clogging roller is rotatably mounted on the inner wall of the rotating plate. A cam is fixedly mounted on the circumferential surface of the anti-clogging roller. A sliding plate is slidably mounted on the surface of the rotating plate. A fixed wheel is rotatably mounted on the end of the sliding plate away from the anti-clogging roller. A telescopic elastic rod is fixedly mounted on the surface of the rotating plate, which further improves the effect of crushing and refining the drugs, makes it convenient for the drug powder after the last screening to be suitable for the dosage form of relevant standards, and improves the utilization rate of raw materials.

[0013] The roller is in contact with the top of the refining cone, and the surface of the refining cone is provided with four filter holes for screening extremely small drug powders. The circumferential surface of the anti-clogging roller is fixedly connected to the end of the transmission wheel group away from the rolling roller, and the free end of the telescopic elastic rod is fixedly connected to the sliding plate. The end of the sliding plate close to the anti-clogging roller is provided with an arc surface one for facilitating contact and extrusion of the cam for brushing and cleaning, so as to avoid clogging of the filter holes, which in turn affects the subsequent preparation and processing of ultrafine powders and ensure the continuity of the screening process.

[0014] The beneficial effects of the embodiments of the present invention are: In the present invention, the medicine inside the screening tank is dried by starting the drying mechanism to avoid the adhesion of the medicine due to moisture, ensuring that the particles can pass through the sieve holes smoothly during the subsequent screening process, and at the same time preventing the medicine from becoming moldy during the screening process, thereby ensuring the initial quality of the medicine. The discharge port falls on the surface of the conveyor frame. When the medicine that meets the standards falls on the second surface of the sieve plate, the previous step is repeated for screening. By achieving accurate separation of large and small particles, the filter holes avoid mixing of medicines of different specifications, and meet the requirements of different dosage forms for the particle size of medicines.

[0015] In the present invention, the medicine is moved to the ash screening plate under the action of the conveyor rack, the fan is started, and the fan output end rotates to blow air in the direction close to the ash screening plate, and then the medicine slides down along the ash screening plate. At this time, the dust or impurities in the medicine are blown away by the action of the fan, which effectively removes light impurities and improves the purity of the medicinal materials. The dust-free medicine then falls into the interior of the material box and is centrally processed by the staff.

[0016] In the present invention, the vibration is transmitted to the sieve plate one through the vibration of the impact plate, and then the rotating shaft drives the transmission rod to vibrate through the propulsion plate, and the vibration of the transmission rod drives the sieve plate two to vibrate. At this time, the vibration effect of the sieve plate one and the sieve plate two is achieved, which improves the screening efficiency and effect of the medicine, and at the same time can also disperse the sticky or easy-to-agglomerate medicinal materials to improve the treatment effect. At the same time, the rotating shaft rotates under the action of the motor output end to drive the rotating plate to rotate, and the rotation of the rotating plate drives the rolling roller to rotate. The rotation of the rolling roller performs preliminary rolling treatment on the medicine, and breaks larger particles into smaller particle sizes, which is convenient for the subsequent preparation of ultrafine drug powder.

[0017] In the present invention, the roller revolves and rotates under the action of the refining cone. At this time, the roller rotation drives the rolling roller to rotate. The rotation of the rolling roller further improves the effect of drug rolling and refining, so that the drug powder after the last screening is suitable for the dosage form of relevant standards, thereby improving the utilization rate of raw materials. The rotation of the rolling roller drives the rotation of the transmission wheel group, and the rotation of the transmission wheel group drives the rotation of the anti-clogging roller. The rotation of the anti-clogging roller brushes and cleans the filter holes at the bottom of the second sieve plate to avoid clogging of the filter holes, which in turn affects the subsequent preparation and processing of ultrafine powder, thereby ensuring the continuity of the screening process.

[0018] In the present invention, the fixed wheel moves under the action of the cam until it contacts the surface of the refining cone to generate vibration. Since the airflow deashing operation cannot be performed on it in the final screening step, the impurities and the drug powder are separated by the vibration of the surface of the refining cone, which further improves the consistency of the drug powder. Subsequently, the drug powder falls through the refining cone to realize the collection of ultrafine drug powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the ash screening plate and the fan of the present invention; Figure 4 This is a schematic diagram of the position structure of the threaded ring and the gear of the present invention; Figure 5 This is a schematic diagram of the position structure of the rotating rod and the linkage rod of the present invention; Figure 6This is a schematic diagram of the position structure of the tapered cylinder and the anti-clogging roller in the present invention; Figure 7 It is a schematic diagram of the position structure of the cam and the fixed wheel of the present invention.

[0021] In the figure: 1. Screening tank; 2. Conveyor rack; 31. Feed port; 32. Discharge port; 41. Drying mechanism; 42. Rotating shaft; 43. Push plate; 44. Ash screening plate; 45. Fan; 46. Material box; 47. Sieve plate 1; 48. Sieve plate 2; 51. Threaded ring; 52. Gear; 53. Rotating rod; 54. Linking rod; 55. Knocking rod; 56. Receiving plate; 57. Conducting rod; 58. Rotating plate; 59. Crushing roller; 510. Roller; 61. Refining cone; 62. Transmission wheel group; 63. Anti-blocking roller; 64. Cam; 65. Sliding plate; 66. Fixed wheel; 67. Telescopic elastic rod. DETAILED DESCRIPTION The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0022] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0023] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0026] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] like Figures 1 to 7 As shown, it shows a medicinal material conveying and screening device in one embodiment of the present invention, including a screening tank 1 and a conveying frame 2, the surface of the screening tank 1 is fixedly penetrated with a feed port 31, the surface of the screening tank 1 is fixedly penetrated with a discharge port 32, the top of the screening tank 1 is provided with a screening device for screening the medicine, the screening device includes a drying mechanism 41, the drying mechanism 41 is fixedly penetrated through the top of the screening tank 1, the inner wall of the screening tank 1 is rotatably mounted with a rotating shaft 42, the circumferential surface of the rotating shaft 42 is fixedly mounted with a pushing plate 43, the surface of the conveying frame 2 away from the screening tank 1 is fixedly mounted with an ash screening plate 44, the inner wall of the conveying frame 2 is fixedly mounted with a fan 45, the surface of the conveying frame 2 is slidably mounted with a material box 46, the inner wall of the screening tank 1 is fixedly mounted with a sieve plate 1 47, the inner wall of the screening tank 1 is fixedly mounted with a sieve plate 2 48, the discharge port 32 is pushed forward under the action of the pushing plate 43, and then falls on the surface of the conveying frame 2 through the discharge port 32. When the medicine that meets the standards falls on the surface of the sieve plate 2 48.

[0028] In some examples, the rotating shaft 42 is connected to the output end of the motor, the pushing plate 43 contacts the sieve plate 47, the angle of the pushing plate 43 is set to an inclined angle, and the surface of the dust screening plate 44 is provided with a filter hole 1 for allowing only dust and very small impurities to pass through, and the conveying frame 2 starts to convey the medicine in the direction close to the dust screening plate 44.

[0029] The surface of sieve plate 1 47 is provided with filter hole 2 for intercepting large pieces of medicine. Medicines that meet the size fall down, and those that do not meet the size are intercepted on the surface of sieve plate 1 47. The surface of sieve plate 2 48 is provided with filter hole 3 for intercepting smaller medicines.

[0030] For example, Figures 1 to 7 As shown, the medicine is thrown into the interior of the screening tank 1 through the feed port 31, and the drying mechanism 41 is started at this time. The drying mechanism 41 starts to dry the medicine inside the screening tank 1 to prevent the medicine from sticking due to moisture, ensuring that the particles can pass through the sieve holes smoothly during the subsequent screening process, and at the same time preventing the medicine from becoming moldy during the screening process, thereby ensuring the initial quality of the medicine. At this time, the rotating shaft 42 rotates under the action of the motor output end, and the rotation of the rotating shaft 42 drives the propulsion plate 43 to rotate. At the same time, the propulsion plate 43 rotates to push the medicine to move. When the medicine passes through the filter holes on the surface of the sieve plate 1 47, the medicine that meets the size falls, and the medicine that does not meet the size is intercepted on the surface of the sieve plate 1 47. Then, it is pushed into the discharge port 32 under the action of the propulsion plate 43, and then falls on the surface of the conveying rack 2 through the discharge port 32. When the medicine that meets the standard falls on the surface of the sieve plate 2 48, the previous step is repeated for screening. By achieving accurate separation of large and small particles, the filter holes prevent the mixing of medicines of different specifications, and meet the requirements of the medicine particle size of different dosage forms.

[0031] When the medicine falls on the surface of the conveyor rack 2 after passing through the screening, the conveyor rack 2 is started, and the conveyor rack 2 starts to transport the medicine in the direction close to the ash screening plate 44. When the medicine moves to the ash screening plate 44 under the action of the conveyor rack 2, the fan 45 is started, and the output end of the fan 45 rotates to blow air in the direction close to the ash screening plate 44. Then the medicine slides down along the ash screening plate 44. At this time, the dust or impurities in the medicine are blown away by the fan 45, which effectively removes light impurities and improves the purity of the medicinal materials. Then the dust-free medicine falls into the inside of the material box 46 and is centrally processed by the staff.

[0032] like Figures 1 to 7 As shown, it shows another embodiment of the present invention, the circumferential surface of the rotating shaft 42 is provided with an auxiliary device for assisting the sieve plate 1 47 and the sieve plate 2 48 to perform screening, the auxiliary device includes a threaded ring 51, the threaded ring 51 is fixedly mounted on the circumferential surface of the rotating shaft 42, the inner wall of the screening tank 1 is rotatably mounted with a gear 52, the surface of the gear 52 is fixedly mounted with a rotating rod 53, the end of the gear 52 away from the gear 52 is rotatably mounted with a linkage rod 54, the inner wall of the screening tank 1 is slidably penetrated by a knocking rod 55, the surface of the propulsion plate 43 is fixedly mounted with a receiving plate 56, the surface of the propulsion plate 43 is fixedly mounted with a conduction rod 57, the circumferential surface of the conveying frame 2 is fixedly mounted with a rotating plate 58, the inner wall of the rotating plate 58 is rotatably mounted with a rolling roller 59, the circumferential surface of the rolling roller 59 is fixedly mounted with a roller 510, the roller 510 revolves and rotates under the action of the refining cone 61, and at this time the rotation of the roller 510 drives the rolling roller 59 to rotate.

[0033] The threaded ring 51 is engaged with the gear 52, and the end of the linkage rod 54 away from the rotating rod 53 is rotatably connected to the end of the knocking rod 55 away from the striking plate 56. The striking plate 56 vibrates and transmits the vibration to the sieve plate 47, and then the rotating shaft 42 drives the transmission rod 57 to vibrate through the propulsion plate 43.

[0034] The circumferential surface of the rolling roller 59 is provided with an anti-jamming groove to avoid jamming. The rotating plate 58 contacts the sieve plate 48. The rotating shaft 42 rotates under the action of the motor output end to drive the rotating plate 58 to rotate, and the rotating plate 58 rotates to drive the rolling roller 59 to rotate. In some examples, the inner wall of the screening tank 1 is provided with an anti-blocking device for preventing the sieve plate 2 48 from being blocked when screening fine drugs. The anti-blocking device includes a refining cone 61, which is fixedly mounted on the inner wall of the screening tank 1. A transmission wheel group 62 is fixedly mounted on the circumferential surface of the rolling roller 59. An anti-blocking roller 63 is rotatably mounted on the inner wall of the rotating plate 58. A cam 64 is fixedly mounted on the circumferential surface of the anti-blocking roller 63. A sliding plate 65 is slidably mounted on the surface of the rotating plate 58. A fixed wheel 66 is rotatably mounted on the end of the sliding plate 65 away from the anti-blocking roller 63. The sliding plate 65 moves downward to drive the fixed wheel 66 to move. At this time, the fixed wheel 66 moves under the action of the cam 64 until it contacts the surface of the refining cone 61 to generate vibration. A telescopic elastic rod 67 is fixedly mounted on the surface of the rotating plate 58.

[0035] The roller 510 contacts the top of the refining cone 61. The surface of the refining cone 61 is provided with four filter holes for screening extremely small drug powders. The circumferential surface of the anti-clogging roller 63 is fixedly connected to the end of the transmission wheel group 62 away from the rolling roller 59. The free end of the telescopic elastic rod 67 is fixedly connected to the sliding plate 65. The end of the sliding plate 65 close to the anti-clogging roller 63 is provided with an arc surface 1 for facilitating contact and extrusion of the cam 64. The rotation of the transmission wheel group 62 drives the anti-clogging roller 63 to rotate, and the anti-clogging roller 63 rotates to brush and clean the filter holes at the bottom of the sieve plate 2 48.

[0036] For example, Figures 1 to 7As shown, when the rotating shaft 42 rotates under the action of the motor output end, it drives the threaded ring 51 to rotate. Since the threaded ring 51 is engaged with the gear 52, the rotation of the threaded ring 51 drives the gear 52 to rotate. The rotation of the gear 52 drives the rotating rod 53 to rotate with the gear 52 as the center. The rotation of the rotating rod 53 drives the linkage rod 54 to rotate. At the same time, the end of the rotating shaft 42 away from the rotating rod 53 rotates to drive the knocking rod 55 to move downward. Subsequently, the knocking rod 55 moves downward under the action of the linkage rod 54. The knocking rod 55 moves downward and contacts and collides with the surface of the struck plate 56 to generate vibration. At this time, the vibration of the struck plate 56 transmits the vibration to the sieve plate. 47, and then the rotating shaft 42 drives the transmission rod 57 to vibrate through the propulsion plate 43, and the vibration of the transmission rod 57 drives the sieve plate 2 48 to vibrate. At this time, the vibration effect of the sieve plate 1 47 and the sieve plate 2 48 is achieved, which improves the efficiency and effect of drug screening, and at the same time can make the sticky or easy-to-agglomerate medicinal materials disperse and thus improve their processing effect. At the same time, the rotating shaft 42 rotates under the action of the motor output end to drive the rotating plate 58 to rotate, and the rotating plate 58 rotates to drive the rolling roller 59 to rotate. The rolling roller 59 rotates to perform preliminary rolling processing on the medicine, breaking larger particles into smaller particle sizes, which is convenient for the subsequent preparation of ultrafine drug powder.

[0037] When the rotating plate 58 rotates under the action of the rotating shaft 42, it drives the roller 510 to rotate. Because the roller 510 is in contact with the refining cone 61, the roller 510 revolves and rotates under the action of the refining cone 61. At this time, the self-rotation of the roller 510 drives the rolling roller 59 to rotate. The rotation of the rolling roller 59 further improves the effect of drug rolling and refining, so that the drug powder after the last screening is suitable for the dosage form of relevant standards, thereby improving the utilization rate of raw materials. At the same time, the rotation of the rolling roller 59 drives the transmission wheel group 62 to rotate, and the rotation of the transmission wheel group 62 drives the anti-clogging roller 63 to rotate. The anti-clogging roller 63 rotates to brush and clean the filter holes at the bottom of the sieve plate 2 48 to avoid clogging of the filter holes, thereby It affects the subsequent preparation and processing of ultrafine powder and ensures the continuity of the screening process. At the same time, the anti-clogging roller 63 rotates to drive the cam 64 to rotate, and the cam 64 rotates to contact and squeeze the sliding plate 65 to move downward. The sliding plate 65 moves downward to drive the fixed wheel 66 to move. At this time, the fixed wheel 66 moves under the action of the cam 64 until it contacts the surface of the refining cone 61 and vibrates. Because the airflow deashing operation cannot be performed on it in the final screening step, the impurities are separated from the drug powder through the vibration of the surface of the refining cone 61, which further improves the consistency of the drug powder. Subsequently, the drug powder falls through the refining cone 61 to realize the collection of ultrafine drug powder.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A medicinal material conveying and screening device, comprising a screening tank (1) and a conveying frame (2), characterized in that: The surface of the screening tank (1) is fixedly penetrated by a feed port (31), the surface of the screening tank (1) is fixedly penetrated by a discharge port (32), the top of the screening tank (1) is provided with a screening device for screening drugs, the screening device comprises a drying mechanism (41), the drying mechanism (41) is fixedly penetrated by the top of the screening tank (1), a rotating shaft (42) is rotatably mounted on the inner wall of the screening tank (1), a propulsion plate (43) is fixedly mounted on the circumferential surface of the rotating shaft (42), an ash screening plate (44) is fixedly mounted on the surface of the conveying frame (2) away from the screening tank (1), a fan (45) is fixedly mounted on the inner wall of the conveying frame (2), a material box (46) is slidably mounted on the surface of the conveying frame (2), a sieve plate 1 (47) is fixedly mounted on the inner wall of the screening tank (1), and a sieve plate 2 (48) is fixedly mounted on the inner wall of the screening tank (1).

2. The medicinal material conveying and screening device according to claim 1, characterized in that: The rotating shaft (42) is connected to the output end of the motor, the pushing plate (43) contacts the sieve plate 1 (47), the angle of the pushing plate (43) is set to an inclined angle, and the surface of the ash screening plate (44) is provided with a filter hole 1 for allowing only dust and very small impurities to pass through.

3. The medicinal material conveying and screening device according to claim 2, characterized in that: The surface of the sieve plate 1 (47) is provided with a filter hole 2 for intercepting large pieces of medicine, and the surface of the sieve plate 2 (48) is provided with a filter hole 3 for intercepting smaller medicines.

4. The medicinal material conveying and screening device according to claim 3, characterized in that: The circumferential surface of the rotating shaft (42) is provided with an auxiliary device for assisting the sieve plate 1 (47) and the sieve plate 2 (48) in screening, and the auxiliary device includes a threaded ring (51), and the threaded ring (51) is fixedly mounted on the circumferential surface of the rotating shaft (42); a gear (52) is rotatably mounted on the inner wall of the screening tank (1), a rotating rod (53) is fixedly mounted on the surface of the gear (52), and a linkage rod (54) is rotatably mounted on the end of the gear (52) away from the gear (52); a knocking rod (55) is slidably penetrated through the inner wall of the screening tank (1), a striking plate (56) is fixedly mounted on the surface of the propulsion plate (43), and a conduction rod (57) is fixedly mounted on the surface of the propulsion plate (43); a rotating plate (58) is fixedly mounted on the circumferential surface of the conveying frame (2), a rolling roller (59) is rotatably mounted on the inner wall of the rotating plate (58), and a roller (510) is fixedly mounted on the circumferential surface of the rolling roller (59).

5. The medicinal material conveying and screening device according to claim 4, characterized in that: The threaded ring (51) is meshed with the gear (52), and one end of the linkage rod (54) away from the rotating rod (53) is rotatably connected to one end of the knocking rod (55) away from the striking plate (56).

6. The medicinal material conveying and screening device according to claim 5, characterized in that: The circumferential surface of the rolling roller (59) is provided with an anti-jamming groove to prevent jamming, and the rotating plate (58) is in contact with the second sieve plate (48).

7. The medicinal material conveying and screening device according to claim 6, characterized in that: The inner wall of the screening tank (1) is provided with an anti-blocking device for preventing the second screen plate (48) from being blocked when screening fine medicines. The anti-blocking device comprises a thinning cone (61), the thinning cone (61) is fixedly mounted on the inner wall of the screening tank (1), a transmission wheel set (62) is fixedly mounted on the circumferential surface of the rolling roller (59), an anti-blocking roller (63) is rotatably mounted on the inner wall of the rotating plate (58), and a cam (64) is fixedly mounted on the circumferential surface of the anti-blocking roller (63).

8. The medicinal material conveying and screening device according to claim 7, characterized in that: A sliding plate (65) is slidably mounted on the surface of the rotating plate (58), a fixed wheel (66) is rotatably mounted on one end of the sliding plate (65) away from the anti-blocking roller (63), and a telescopic elastic rod (67) is fixedly mounted on the surface of the rotating plate (58).

9. The medicinal material conveying and screening device according to claim 8, characterized in that: The roller (510) contacts the top of the refining cone (61), and the surface of the refining cone (61) is provided with four filter holes for screening extremely small drug powders. The circumferential surface of the anti-clogging roller (63) is fixedly connected to the end of the transmission wheel group (62) away from the rolling roller (59).

10. The medicinal material conveying and screening device according to claim 9, characterized in that: The free end of the telescopic elastic rod (67) is fixedly connected to the sliding plate (65), and one end of the sliding plate (65) close to the anti-blocking roller (63) is provided with an arc surface for facilitating contact and extrusion of the cam (64).

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