Medicine screening machine for traditional Chinese medicine decoction piece production

Abstract

The invention relates to the technical field of screening equipment, and discloses a traditional Chinese medicine decoction piece production medicine screening machine which comprises a winnowing screening assembly and a thickness screening assembly which are sequentially communicated, a multi-stage screening assembly is arranged at the lower end of the thickness screening assembly, and a fan assembly and a feeding port are arranged at the top end of the winnowing screening assembly. A driving assembly is arranged at one end of the winnowing screening assembly, an outlet of the winnowing screening assembly is communicated with the thickness screening assembly, an impurity removing sleeve is arranged on the outer side of the thickness screening assembly, the thick sheet collecting box is arranged at the outlet end of the thickness screening assembly, and the multi-stage screening assembly is arranged at the lower end of the thickness screening assembly. Impurities are removed while the traditional Chinese medicine decoction pieces are screened through the winnowing screening assembly, the working procedures are reduced, and the screening efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of screening raw materials for Chinese herbal medicine slices, in particular to a medicine screening machine for producing Chinese herbal medicine slices. Background Art

[0002] Chinese herbal medicine slices are Chinese herbal medicines that have been processed and prepared according to the theory of traditional Chinese medicine and the processing methods of traditional Chinese medicine, and can be directly used in clinical Chinese medicine. There is no absolute boundary between Chinese herbal medicines and Chinese herbal medicine slices. Chinese herbal medicine slices include some Chinese herbal medicine slices processed at the place of origin, original herbal medicine slices, and slices that have been cut and processed. The main production processes of Chinese herbal medicine slices are simply divided into three major processes: purification, cutting, and processing; purification means that the medicinal materials are selected, air-selected, water-selected, screened, sheared, scraped, removed, brushed, crushed, stringed, and soaked. , meeting the quality standard of specified purity; the cutting methods include cutting, shearing, planing, pounding, splitting, pounding, and wool making. Cutting requires certain specifications of thickness and particle size. The cut pieces are dried to facilitate preservation and ensure quality; processing refers to the process of using clean or cut medicinal materials and clean slices, and making medicines according to the processing rules formulated according to the theory of traditional Chinese medicine, using the specified processing technology. Chinese medicinal materials must be processed according to the law to meet the quality standards of clinical use of traditional Chinese medicine, and can adapt to the requirements of the use and preparation quality of traditional Chinese medicine prescriptions and Chinese patent medicine preparations.

[0003] When Chinese herbal medicine slices are produced, a lot of impurities and dust will be mixed in the raw materials of Chinese herbal medicines. A screening machine is needed in the production of herbal medicine slices. Most of the existing screening processes of Chinese herbal medicine slices can only screen out impurities and dust. This processing method is not convenient for use in Chinese herbal medicine slice production lines, and the herbal medicine slices cannot be graded during the screening process. Therefore, a new medicine screening machine is urgently needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a screening machine for Chinese herbal medicine production, which can screen Chinese herbal medicines through a screening component and remove impurities at the same time, reduce the number of steps, and improve the screening efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, a medicine screening machine for the production of Chinese herbal medicine slices is provided, comprising a wind selection and screening component and a thickness screening component connected in sequence, a multi-stage screening component is provided at the lower end of the thickness screening component, a fan component and a feed inlet are provided at the top of the wind selection and screening component, a driving component is provided at one end of the wind selection and screening component, the outlet of the wind selection and screening component is connected to the thickness screening component, a de-impurity sleeve is provided on the outside of the thickness screening component, and also includes a thick slice aggregate box, which is arranged at the outlet end of the thickness screening component, and also includes a multi-stage screening component, which is arranged at the lower end of the thickness screening component.

[0006] Furthermore, the wind selection screening component includes a U-shaped shell, a top cover plate is provided at the top of the shell, a through hole connecting the upper and lower ends of the top cover plate is opened at the top of the top cover plate, the feed port is screwed at the through hole of the top cover plate, a wind selection side plate is provided at the end of the shell away from the thickness screening component, the area surrounded by the shell, the wind selection side plate and the top cover plate constitutes a screening chamber, and also includes a sealing baffle, the sealing baffle is U-shaped and arranged parallel to the wind selection side plate, the sealing baffle is arranged in the screening chamber and the top end of the sealing baffle is screwed to the top cover plate, an air induced draft frame is provided on the side of the sealing baffle close to the wind selection side plate, the cross-section of the air induced draft frame is fan-shaped, and the air induced draft frame includes a screw-connected A horizontal plate on the end face of the sealing baffle is provided with an induced draft cover plate at the top of the horizontal plate, an air port connecting the inside and outside of the induced draft frame is provided on the induced draft cover plate, an air outlet connecting the inside and outside of the induced draft frame is provided on the sealing baffle, an air outlet duct is provided at the end of the sealing baffle away from the air selection side plate, the air outlet duct is annular, and the air outlet duct is composed of an inner air duct and an outer air duct arranged coaxially. Furthermore, the fan assembly comprises a blower fan and an induced draft duct installed on the top of the top cover plate, the induced draft duct passes through the air selection side plate and is connected to the induced draft frame through a sealing flange, and also comprises a material guide pipe, the cross-section of the material guide pipe is fan-shaped, and the outer diameter of the material guide pipe is the same as the outer diameter of the arc segment of the sealing baffle.

[0007] Furthermore, the driving assembly includes a motor disposed on one side of the air selection side plate, the output shaft of the motor penetrates the air selection side plate and extends into the screening chamber, and also includes a first gear, the first gear is connected to the output shaft through a pin shaft, and also includes a transmission gear, the transmission gear is meshed with the first gear, and also includes a transmission gear shaft, the transmission gear shaft is respectively connected to the air selection side plate and the sealing baffle through a pin shaft, the transmission gear shaft is coaxial with the transmission gear and rotatably matched through a bearing, and also includes a second gear, the second gear is meshed with the transmission gear, and also includes a second gear shaft, the second gear shaft is connected to the air selection side plate through a pin shaft, The second gear shaft is coaxial with the second gear and rotatably cooperates with it through a bearing. It also includes a transmission shaft, which is coaxial with the second gear shaft. The transmission shaft is connected to the second gear through a pin. A third gear is provided at the end of the transmission shaft away from the air selection side plate. The third gear is connected to the transmission shaft through a pin. It also includes a fourth gear, which is meshed with the third gear. A material baffle plate and a miscellaneous material baffle plate are respectively provided on both sides of the third gear. The material baffle plate is provided on the side of the fourth gear close to the sealing baffle. The material baffle plate and the sealing baffle are arranged in parallel. The top end of the material baffle plate is screwed to the bottom end of the top cover plate, and a through hole cooperating with the material guide pipe is opened in the middle of the material baffle plate.

[0008] Furthermore, the wind selection and screening component also includes a screening cylinder and an outer screening cylinder arranged coaxially, wherein the fourth gear is arranged between the screening cylinder and the outer screening cylinder, the fourth gear is connected to the screening cylinder in an integral manner, the screening cylinder and the debris baffle are rotatably matched, the area surrounded by the screening cylinder constitutes a screening cylinder cavity, the cavity between the screening cylinder and the outer screening cylinder constitutes a debris cavity, the cavity between the outer screening cylinder and the outer shell constitutes an outlet cavity, a debris port connecting the debris cavity and the outlet cavity is provided on the wall surface of the outer screening cylinder away from the top cover plate, a sealing baffle ring is provided at the end of the screening cylinder away from the sealing baffle, the sealing baffle ring is annular, and the sealing baffle ring is connected to the outer screening cylinder in an integral manner, and the sealing The retaining ring rotates with the screening cylinder through a bearing, a plurality of screening holes are arranged on the cylinder wall of the screening cylinder, a screening hole valve is arranged on the outer wall of the screening cylinder, and also includes a fixed shaft, which is coaxially arranged with the screening cylinder, and a connecting rotating shaft is provided at the end of the fixed shaft near the sealing baffle, the connecting rotating shaft is coaxially arranged with the fixed shaft, and the connecting rotating shaft extends to the sealing baffle end, a visual inspection module is provided on the outside of the fixed shaft, and also includes a fixed shaft mounting frame, the fixed shaft mounting frame includes a fixed sleeve and a fixed connecting rod which are sleeved on the outside of the fixed shaft, the fixed connecting rod extends from the outside of the fixed sleeve to the inner wall of the sealing retaining ring, and the fixed connecting rod is screwed to the sealing retaining ring.

[0009] Furthermore, the screening hole valve includes a fixed flange, which is groove-shaped and opens upward, and a fixed flange valve hole is opened in the middle of the fixed flange. It also includes a strip track, which passes through the fixed flange and is arranged at equal intervals around the fixed flange valve hole. An electromagnetic track is arranged in the strip track. It also includes a sliding valve flap, which is triangular in shape, and one corner of the sliding valve flap is chamfered. A slider is provided at the end of the sliding valve flap close to the fixed flange, a permanent magnet is provided in the slider, and a rotating column is provided at the end of the sliding valve flap away from the fixed flange. A guide rail protrusion is provided on one side of the sliding valve flap, and a guide rail groove is provided on the other side of the sliding valve flap. The guide rail protrusion and the guide rail groove of every two adjacent sliding valve flaps are slidably matched. It also includes a cover flange and a rotating guide rail. The rotating guide rail passes through the cover flange, and a through hole is opened in the middle of the cover flange. It also includes a sealing flange, and a sealing flange with a sealing flange valve hole opened in the middle of the sealing flange.

[0010] Furthermore, the output shaft passes through the sealing baffle, and a reducer is provided at the end of the output shaft away from the motor. The connecting shaft is coaxially arranged with the output shaft through the reducer, and an air sleeve is provided at the end of the reducer away from the sealing baffle. The air sleeve is connected to the air duct, and the air sleeve includes two air sleeve cover plates arranged in parallel, and an air sleeve is integrally provided on the outer side of the air sleeve cover plate. The two air sleeve cover plates are both sealed and rotatably matched with the connecting shaft, an air inlet is provided on the outer wall of the air sleeve, and a hollow tube cavity is provided in the connecting shaft, and the hollow tube cavity extends from the end of the connecting shaft away from the sealing baffle to the air sleeve and is connected to the air sleeve. The connecting shaft and the fixed shaft are rotatably matched through a sealed bearing, an air intake pipe is arranged in the fixed shaft, and the inner diameter of the air intake pipe is the same as the inner diameter of the hollow tube cavity of the connecting shaft, wherein multiple visual inspection modules installed on the outside of the fixed shaft are arranged at intervals, a nozzle mounting sleeve is provided between every two visual inspection modules, and multiple nozzles are provided axially on the outer side surface of the nozzle mounting sleeve, a spiral conveying blade is provided on the inner wall surface of the screening cylinder, and multiple fixed connecting rods are provided at the end of the spiral conveying blade near the sealing baffle, one end of the fixed connecting rod is threadedly connected to the spiral conveying blade, and the other end of the fixed connecting rod is threadedly connected to the connecting shaft.

[0011] Furthermore, the thickness screening component includes a screening outer cylinder, which is cylindrical and has an angle of 30-60 degrees with the horizontal plane. It also includes a transition plate, whose cross-section is fan-shaped and extends inward from the end close to the wind selection screening component. It also includes a screening inner cylinder, whose cross-section is the same as that of the transition plate, and the screening inner cylinder extends from the transition plate to the end of the screening inner cylinder away from the wind selection screening component. The screening inner cylinder divides the screening outer cylinder into two parts, upper and lower parts, wherein the cavity in the upper part of the screening inner cylinder constitutes the screening outer cavity cylinder, and the cavity in the lower part of the screening inner cylinder constitutes the screening inner cavity cylinder. A thin film discharge port is provided on the outer side of the screening outer cylinder away from the end of the wind selection screening component, and a dividing baffle is provided on the inner wall of the screening inner cylinder.

[0012] Furthermore, triangular connecting rods are provided on the end faces of both sides of the dividing baffle, and the cross-section of the triangular connecting rods is in the shape of a right-angled triangle. The dividing baffle and the triangular connecting rods on both sides thereof constitute a straightening assembly, and a decoction piece slide rod is provided between every two straightening assemblies. The cross-section of the decoction piece slide rod is U-shaped, and a thickness screening seam connecting the screening outer cavity cylinder and the screening inner cavity cylinder is opened between the decoction piece slide rod and the straightening assembly.

[0013] Furthermore, the multi-stage screening assembly includes a multi-stage screening shell, the cross-section of the multi-stage screening shell is U-shaped, and a coaxially arranged inner screen cylinder, a middle screen cylinder and an outer screen cylinder are arranged in the multi-stage screening shell, wherein the angle between the inner screen cylinder and the horizontal plane is 45-60 degrees, and the diameters of the sieve holes on the inner screen cylinder, the middle screen cylinder and the outer screen cylinder gradually decrease, and also includes a plugging plate, which is arranged at one end of the middle screen cylinder, and a through hole connecting the inner screen cylinder and the outer screen cylinder is opened in the middle of the plugging plate. A multi-stage screening feed port is provided at the through hole of the sealing plate, and the multi-stage screening feed port extends from one end of the inner screen cylinder to the top of the multi-stage screening shell, and the multi-stage screening feed port is connected with the thin film discharge port. It also includes a multi-stage screening motor and a screening shaft, and the screening shaft is connected to the multi-stage screening motor through a coupling. A connecting rod is provided on the outside of the screening shaft, and the connecting rod is arranged at intervals along the circumferential direction of the outer side of the screening shaft. The connecting rod passes through the inner screen cylinder and the middle screen cylinder and is fixedly connected to the outer screen cylinder.

[0014] Furthermore, the multi-stage screening component also includes a coaxially arranged inner screening barrel, a middle screening barrel and an outer screening barrel, which are respectively connected to the inner screen barrel, the middle screen barrel and the outer screen barrel, and are respectively rotatably matched with the inner screen barrel, the middle screen barrel and the outer screen barrel through bearings, and baffles are provided on the ends of the multi-stage screening shell, the middle screening barrel and the outer screening barrel away from the multi-stage screening motor, and waste outlets, secondary outlets and intermediate outlets are respectively provided on the outer sides of the multi-stage screening shell, the middle screening barrel and the outer screening barrel away from the thickness screening component, and the outlet of the inner screening barrel constitutes a superior outlet.

[0015] The present invention has the following beneficial effects over the prior art: 1. The Chinese herbal medicine pieces are fed into the feed tube cavity surrounded by the feed guide pipe and the sealing baffle through the feed port, and then the blower fan pushes the airflow through the induced draft pipe into the feed tube cavity surrounded by the feed guide pipe and the sealing baffle, so that the Chinese herbal medicine pieces are blown into the screening cylinder cavity under the action of high-speed wind force. The high-speed airflow blows the Chinese herbal medicine pieces into the screening cylinder cavity and preliminarily separates the dust and impurities in the pieces.

[0016] 2. The output shaft is driven to rotate by the motor. Since the output shaft is connected to the connecting shaft by a reducer, the spiral conveying blade fixedly connected to the connecting shaft follows the rotation, thereby achieving the purpose of pushing the movement of the Chinese herbal medicine pieces by the spiral conveying blade. Then, by setting the ratio of the pitch of the spiral conveying blade to the center distance of two adjacent screening holes along the central axis to 1 or 2, the Chinese herbal medicine pieces are moved horizontally from one screening hole of the screening cylinder to another screening hole under the action of the spiral conveying blade, which is convenient for the visual inspection module to photograph and analyze the Chinese herbal medicine pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is an axonometric diagram of the medicine screening machine of the present invention; Figure 2 A top view of the air selection and screening assembly of the present invention; Figure 3 For the present invention Figure 2 AA schematic diagram; Figure 4 This is a front view of the wind selection and screening assembly of the present invention; Figure 5 For the present invention Figure 4 BB schematic diagram; Figure 6 It is an axonometric view of the sealing baffle of the present invention; Figure 7 For the present invention Figure 6 sectional view of Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of part A; Fig. 9 For the present invention Figure 7 A partial enlarged schematic diagram of part B; Fig.10 A schematic diagram of a fixed shaft according to another embodiment of the present invention; Fig.11 A schematic diagram of a screening cylinder according to another embodiment of the present invention; Fig.12 This is an axonometric view of the screening hole valve of the present invention; Fig.13 An axonometric view of a thickness screening assembly of the present invention; Fig.14 For the present invention Fig.13 Schematic diagram of CC; Fig.15 Screening inner cylinder axonometric diagram for the present invention; Fig.16 For the present invention Fig.15 A partial enlarged schematic diagram of the D portion; Fig.17 It is a schematic diagram of a multi-stage screening assembly of the present invention; Fig.18 For the present invention Fig.17 Cross-sectional view of .

[0018] In the figure: 1. wind selection and screening component; 101. shell; 102. wind selection side plate; 103. top cover plate; 104. connecting shaft; 105. fixed shaft; 106. air inlet pipe; 107. fixed shaft mounting frame; 108. visual inspection module; 109. screening cylinder; 110. screening hole; 111. sealing baffle ring; 112. outer screen cylinder; 113. screening cylinder cavity; 114. miscellaneous material cavity; 115. miscellaneous material outlet cavity; 116. miscellaneous material outlet; 117. sealing baffle; 118. air induction frame; 119. air outlet pipe; 120, material guide pipe; 121, fourth gear; 122, material baffle; 123, debris baffle; 124, nozzle; 125, fixed connecting rod; 126, spiral conveying blade; 127, nozzle mounting sleeve; 128, screening hole valve; 129, fixed flange; 130, bar track; 131, fixed flange valve hole; 132, sliding valve disc; 133, cover flange; 134, sealing flange; 135, sealing flange valve hole; 136, rotating guide rail; 2, fan assembly; 201, air duct; 3, debris removal sleeve Cylinder; 4, thickness screening component; 401, screening outer cylinder; 402, screening inner cylinder; 403, dividing baffle; 404, transition plate; 405, screening inner cavity cylinder; 406, screening outer cavity cylinder; 407, thin slice discharge port; 408, slice slide rod; 409, triangular connecting rod; 410, thickness screening slit; 5, multi-stage screening component; 501, multi-stage screening shell; 502, multi-stage screening motor; 503, waste outlet; 504, secondary discharge port; 505, intermediate discharge port; 506, inner screening discharge cylinder; 5 07. Middle screening cylinder; 508. External screening cylinder; 509. Inner screen cylinder; 510. Middle screen cylinder; 511. External screen cylinder; 512. Multi-stage screening feed port; 513. Screening shaft; 6. Thick sheet collection box; 7. Driving assembly; 701. Output shaft; 702. First gear; 703. Transmission gear shaft; 704. Transmission gear; 705. Second gear shaft; 706. Second gear; 707. Transmission shaft; 708. Third gear; 709. Reducer; 8. Feed port; 9. Support legs. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In one embodiment, Figure 1-9 A medicine screening machine for producing Chinese medicine pieces is shown, comprising: Figure 1The wind selection and screening component 1 and the thickness screening component 4 are connected in sequence as shown, and a multi-stage screening component 5 is provided at the lower end of the thickness screening component 4. A fan component 2 and a feed port 8 are provided at the top of the wind selection and screening component 1, and a driving component 7 is provided at one end of the wind selection and screening component 1. The outlet of the wind selection and screening component 1 is connected to the thickness screening component 4, and a debris removal sleeve 3 is provided on the outside of the thickness screening component 4. It also includes a thick sheet aggregate box 6, which is arranged at the outlet end of the thickness screening component 4, and also includes a multi-stage screening component 5, which is arranged at the lower end of the thickness screening component 4.

[0021] like Figure 2-7 As shown, the wind selection screening component 1 includes a U-shaped shell 101, a support leg 9 is provided at the lower end of the shell 101, a top cover plate 103 is provided at the top of the shell 101, a through hole connecting the upper and lower ends of the top cover plate 103 is opened at the top of the top cover plate 103, the feed port 8 is screwed at the through hole of the top cover plate 103, and a wind selection side plate 102 is provided at the end of the shell 101 away from the thickness screening component 4. The area surrounded by the shell 101, the wind selection side plate 102 and the top cover plate 103 constitutes a screening chamber, and also includes a sealing baffle 117, the sealing baffle 117 is U-shaped and arranged parallel to the wind selection side plate 102, the sealing baffle 117 is arranged in the screening chamber and its top end is screwed to the top cover plate 103, and an air induction frame 118 is provided on the side of the sealing baffle 117 close to the wind selection side plate 102, and the cross-section of the air induction frame 118 is fan-shaped. The air induced frame 118 includes a horizontal plate screwed on the end face of the sealing baffle 117, an air induced cover plate is provided on the top of the horizontal plate, an air outlet connecting the inside and outside of the air induced frame 118 is provided on the air induced cover plate, an air outlet connected to the air induced frame 118 is opened on the sealing baffle 117, an air outlet pipe 119 is provided at the end of the sealing baffle 117 away from the air selection side plate 102, the air outlet pipe 119 is annular, and the air outlet pipe 119 includes an inner air duct and an outer air duct arranged coaxially, the fan assembly 2 includes a blower fan and an air induced pipe 201 installed on the top of the top cover plate 103, the air induced pipe 201 passes through the air selection side plate 102 and is connected to the air induced frame 118 through a sealing flange, and also includes a material guide pipe 120, the cross-section of the material guide pipe 120 is fan-shaped, and the outer diameter of the material guide pipe 120 is the same as the outer diameter of the arc segment of the sealing baffle 117.

[0022] like Figure 3As shown, the driving assembly 7 includes a motor arranged on one side of the air selection side plate 102, the output shaft 701 of the motor penetrates the air selection side plate 102 and extends into the screening chamber, and also includes a first gear 702, the first gear 702 is connected to the output shaft 701 through a pin shaft, and also includes a transmission gear 704, the transmission gear 704 is meshed with the first gear 702, and also includes a transmission gear shaft 703, the transmission gear shaft 703 is respectively connected to the air selection side plate 102 and the sealing baffle 117 through a pin shaft, the transmission gear shaft 703 is coaxial with the transmission gear 704 and rotates with the bearing, and also includes a second gear 706, the second gear 706 is meshed with the transmission gear 704, and also includes a second gear shaft 705, the second gear shaft 705 is connected to the air selection side plate 102 through a pin shaft, and the second gear shaft 705 It is coaxial with the second gear 706 and rotatably matched through a bearing, and also includes a transmission shaft 707, which is coaxial with the second gear shaft 705, and the transmission shaft 707 is connected to the second gear 706 through a pin. A third gear 708 is provided at the end of the transmission shaft 707 away from the air separation side plate 102, and the third gear 708 is connected to the transmission shaft 707 through a pin. It also includes a fourth gear 121, which is meshed with the third gear 708, and a material baffle plate 122 and a miscellaneous material baffle plate 123 are respectively provided on both sides of the third gear 708, wherein the material baffle plate 122 is provided on the side of the fourth gear 121 close to the sealing baffle 117, and the material baffle plate 122 is arranged parallel to the sealing baffle 117, and the top end of the material baffle plate 122 is screwed to the bottom end of the top cover plate 103, and a through hole matching the material guide pipe 120 is opened in the middle of the material baffle plate 122.

[0023] like Figure 4-6As shown, the wind selection and screening component 1 also includes a screening cylinder 109 and an outer screen cylinder 112 arranged coaxially, wherein a fourth gear 121 is arranged between the screening cylinder 109 and the outer screen cylinder 112, the fourth gear 121 is integrally connected to the screening cylinder 109, the screening cylinder 109 and the miscellaneous material baffle 123 are rotatably matched, the area surrounded by the screening cylinder 109 constitutes a screening cylinder cavity 113, the cavity between the screening cylinder 109 and the outer screen cylinder 112 constitutes a miscellaneous material cavity 114, the cavity between the outer screen cylinder 112 and the outer shell 101 constitutes a miscellaneous material outlet cavity 115, a miscellaneous material port 116 connecting the miscellaneous material cavity 114 and the miscellaneous material outlet cavity 115 is provided on the tube wall surface of the outer screen cylinder 112 away from the top cover plate 103, and a sealing baffle ring 111 is provided at the end of the screening cylinder 109 away from the sealing baffle 117, the sealing baffle ring 111 is annular, and the sealing baffle ring 111 is connected to the outer screen cylinder 112. Integrated connection, the sealing ring 111 rotates with the screening cylinder 109 through a bearing, a plurality of screening holes 110 are provided on the wall of the screening cylinder 109, and a screening hole valve 128 is provided on the outer wall of the screening cylinder 109. It also includes a fixed shaft 105, which is coaxially arranged with the screening cylinder 109, and a connecting shaft 104 is provided at the end of the fixed shaft 105 close to the sealing baffle 117. The connecting shaft 104 is coaxially arranged with the fixed shaft 105, and the connecting shaft 104 extends to the end of the sealing baffle 117. A visual inspection module 108 is provided on the outside of the fixed shaft 105, and it also includes a fixed shaft mounting frame 107. The fixed shaft mounting frame 107 includes a fixed sleeve and a fixed connecting rod which are sleeved on the outside of the fixed shaft 105. The fixed connecting rod extends from the outside of the fixed sleeve to the inner wall of the sealing ring 111, and the fixed connecting rod is screwed to the sealing ring 111.

[0024] In the present embodiment, when there is only one kind of Chinese herbal medicine slices, the Chinese herbal medicine slice material processed into flakes enters the feed tube cavity surrounded by the guide tube 120 and the sealing baffle 117 through the feed port 8, and then the air blower of the fan assembly 2 pushes the air flow through the air duct 201 into the air duct frame 118, and then the high-speed gas is sent into the feed tube cavity surrounded by the guide tube 120 and the sealing baffle 117 through the air outlet pipe 119, and then the Chinese herbal medicine slices are blown into the screening cylinder cavity 113 under the action of high-speed wind force, and the high-speed airflow blows the Chinese herbal medicine slices into the screening cylinder cavity 113 while preliminarily separating the dust and impurities in the slices, and the high-speed airflow blows the dust and impurities into the thickness screening assembly 4, and then discharges them along the pipeline; At the same time, the motor of the driving assembly 7 works, the motor drives the output shaft 701 to work, the output shaft 701 drives the first gear 702 connected to its pin shaft to rotate, and the first gear 702 is meshed with the transmission gear 704, thereby driving the transmission gear 704 to rotate, the transmission gear 704 is meshed with the second gear 706, so that the transmission gear 704 drives the second gear 706 to rotate, and the third gear 708 is connected to the second gear 706 through the transmission shaft 707, so that the third gear 708 rotates with the second gear 706, and then the third gear 708 is meshed with the fourth gear 121, thereby driving the fourth gear 121 to rotate, and finally the fourth gear 121 is connected to the screening drum 109 in an integrated manner, so that the screening drum 109 rotates around its own rotation axis; Then, when the screening cylinder 109 rotates, the pieces of medicine attached to the inner wall of the screening cylinder 109 are driven to rotate accordingly, and the pieces of medicine attached to the inner wall of the screening cylinder 109 are made to adhere to the inner wall of the screening cylinder 109 under the action of centrifugal force. When impurities need to be screened, the screening hole valve 128 installed on the outer wall of the screening cylinder 109 and matched with the screening hole 110 is opened, and the impurities in the pieces of medicine enter the miscellaneous material cavity 114 through the screening hole 110; When the quality of the slices needs to be inspected, the screening hole valve 128 installed on the outer wall of the screening cylinder 109 and matched with the screening hole 110 is closed, and then the visual inspection module 108 (using a color sorting device commonly used in the market) installed on the outer surface of the fixed shaft 105 takes pictures and analyzes the slices of Chinese medicine attached to the inner wall of the screening cylinder 109, and then the screening hole valve 128 at the screening hole 110 corresponding to the slices of Chinese medicine that do not meet the requirements is opened, so that the slices of Chinese medicine that do not meet the quality requirements (such as color, shape, color, etc.) pass through the screening hole 110 into the miscellaneous material cavity 114. Finally, the Chinese herbal medicines that meet the quality requirements are blown into the thickness screening component 4 under the action of external wind force to screen the thickness, and the Chinese herbal medicines that do not meet the quality requirements are sent to the miscellaneous material chamber 114, and then the impurities and the Chinese herbal medicines that do not meet the quality requirements enter the miscellaneous material outlet chamber 115 from the miscellaneous material chamber 114 through the miscellaneous material port 116 under the action of gravity. The wind selection and screening component 1 also includes a slag discharge fan, and the air outlet of the slag discharge fan is connected to the miscellaneous material outlet chamber 115. The impurities in the miscellaneous material outlet chamber 115 are sent into the impurity removal sleeve 3 under the action of the slag discharge fan, and finally discharged through the discharge port of the impurity removal sleeve 3.

[0025] like Fig.12As shown, the screening hole valve 128 includes a fixed flange 129, which is in a groove shape and opens upward, and a fixed flange valve hole 131 is opened in the middle of the fixed flange 129, and also includes a bar track 130, which runs through the fixed flange 129 and is arranged at equal intervals around the fixed flange valve hole 131, and an electromagnetic track is arranged in the bar track 130, and also includes a sliding valve flap 132, which is in a triangular shape, and one corner of the sliding valve flap 132 is chamfered, and a slider is provided at the end of the sliding valve flap 132 close to the fixed flange 129. A permanent magnet is provided in the slider, a rotating column is provided at the end of the sliding valve flap 132 away from the fixed flange 129, a guide rail protrusion is provided on one side of the sliding valve flap 132, and a guide rail groove is provided on the other side of the sliding valve flap 132. The guide rail protrusions and guide rail grooves of every two adjacent sliding valve flaps 132 are slidably matched. It also includes a cover flange 133 and a rotating guide rail 136. The rotating guide rail 136 passes through the cover flange 133. A through hole is opened in the middle of the cover flange 133. It also includes a sealing flange 134. A sealing flange valve hole 135 is opened in the middle of the sealing flange 134.

[0026] In the present embodiment, a pressure sensor is provided in the cover flange 133, and the weight of the medicinal pieces can be calculated by the rotation speed of the screening cylinder 109 and the pressure value of the pressure sensor. When the quality of the medicinal pieces is detected, it is necessary to close the screening hole valve 128 installed on the outer wall of the screening cylinder 109 and cooperating with the screening hole 110, so that the heavier stone impurities cannot be blown away by the wind. To solve this problem, a plurality of bar tracks 130 are provided on the fixed flange 129, and an electromagnetic track is provided in the bar track 130, and a sliding valve flap 132 is installed in the screening hole valve 128. The sliding valve flap 132 is triangular in shape, and a sliding block is provided at the end of the sliding valve flap 132 close to the fixed flange 129, and a permanent magnet is provided in the sliding block, and a rotating column is provided at the end of the sliding valve flap 132 away from the fixed flange 129. A guide rail protrusion is provided on one side of the movable valve flap 132, and a guide rail groove is provided on the other side of the sliding valve flap 132. The guide rail protrusion and the guide rail groove of every two adjacent sliding valve flaps 132 slide in cooperation, that is, by energizing the electromagnetic track, the sliding valve flap 132 is driven to slide. When multiple sliding valve flaps 132 slide together, the effective aperture of the fixed flange valve hole 131 will be affected. In order to better adjust the fixed flange valve hole 131, a damping rod is provided on one side of the slider, so that when the visual inspection module 108 installed on the outer surface of the fixed shaft 105 is used to photograph and analyze the Chinese herbal medicine pieces attached to the inner wall of the screening cylinder 109, the fixed flange valve hole 131 is not completely blocked by the sliding valve flap 132 and stone impurities are allowed to pass through, so that heavier stone impurities can pass through the screening hole 110 not covered by the herbal medicine pieces.

[0027] When there are multiple kinds of Chinese herbal medicine slices, the Chinese herbal medicine slice materials are passed through the feed port 8 into the feed tube cavity surrounded by the guide tube 120 and the sealing baffle 117, and then the air blower of the fan assembly 2 pushes the air flow through the air duct 201 into the air duct frame 118, and then the high-speed gas is sent into the feed tube cavity surrounded by the guide tube 120 and the sealing baffle 117 through the air outlet pipe 119, and then the Chinese herbal medicine slices are blown into the screening cylinder cavity 113 under the action of high-speed wind force, and the high-speed airflow blows the Chinese herbal medicine slices into the screening cylinder cavity 113 while preliminarily separating the dust and impurities in the slices, and the high-speed airflow blows the dust and impurities into the thickness screening assembly 4, and then discharges them along the pipeline; At the same time, the motor of the driving assembly 7 works, and then drives the screening cylinder 109 to rotate around its own rotating axis through the output shaft 701, the first gear 702, the transmission gear 704, the second gear 706, the third gear 708 and the fourth gear 121. When the screening cylinder 109 rotates, the medicinal pieces attached to the inner wall of the screening cylinder 109 are driven to rotate with it. Under the action of centrifugal force, the Chinese herbal medicine pieces are attached to the inner wall of the screening cylinder 109, and the screening hole valve 128 installed on the outer wall of the screening cylinder 109 and matched with the screening hole 110 is energized, and the electromagnetic track in the screening hole valve 128 is energized. Under the action of electromagnetic force, the sliding valve flap 132 is driven to slide along the strip track 130, and the displacement of the sliding valve flap 132 is controlled by adjusting the current size and the joint action of the damping rod, so that multiple sliding valve flaps 132 slide outward together, so that the medicinal pieces with smaller diameters pass through the screening hole 110, thereby realizing the separation of medicinal pieces of different sizes.

[0028] like Figure 10-11As shown, the output shaft 701 passes through the sealing baffle 117, and a reducer 709 is provided at the end of the output shaft 701 away from the motor. The connecting shaft 104 is coaxially arranged with the output shaft 701 through the reducer 709, and an air sleeve is provided at the end of the reducer 709 away from the sealing baffle 117, and the air sleeve is communicated with the air duct 201. The air sleeve includes two air sleeve cover plates arranged in parallel, and an air sleeve is integrally provided on the outer side of the air sleeve cover plate. The two air sleeve cover plates are both sealed and rotatably matched with the connecting shaft 104, and an air inlet is provided on the outer wall of the air sleeve. A hollow tube cavity is provided in the connecting shaft 104, and the hollow tube cavity extends from the end of the connecting shaft 104 away from the sealing baffle 117 to the air sleeve and is communicated with the air sleeve, and the connecting shaft 104 is connected to the fixed shaft. 105 is rotatably matched through a sealed bearing, an air intake pipe 106 is provided in the fixed shaft 105, the inner diameter of the air intake pipe 106 is the same as the inner diameter of the hollow tube cavity connected to the rotating shaft 104, wherein a plurality of visual inspection modules 108 installed on the outside of the fixed shaft 105 are arranged at intervals, a nozzle mounting sleeve 127 is provided between every two visual inspection modules 108, a plurality of nozzles 124 are axially provided on the outer side surface of the nozzle mounting sleeve 127, a spiral conveying blade 126 is provided on the inner wall surface of the screening cylinder 109, a plurality of fixed connecting rods 125 are provided at the end of the spiral conveying blade 126 near the sealing baffle 117, one end of the fixed connecting rod 125 is screwed to the spiral conveying blade 126, and the other end of the fixed connecting rod 125 is screwed to the connecting rotating shaft 104.

[0029] In this embodiment, the connecting shaft 104 and the fixed shaft 105 are rotatably matched through a sealed bearing or the connecting shaft 104 and the fixed shaft 105 are integrally connected, and the output shaft 701 is driven to rotate by the motor. Since the output shaft 701 and the connecting shaft 104 are connected through the reducer 709, the connecting shaft 104 rotates following the rotation of the output shaft 701. At the same time, since the spiral conveying blade 126 is fixedly connected to the connecting shaft 104 through the fixed connecting rod 125, the spiral conveying blade 126 rotates following the rotation of the connecting shaft 104, thereby realizing the delivery of the Chinese herbal medicine pieces from the feed tube cavity surrounded by the guide tube 120 and the sealing baffle 117 into the screening cylinder cavity 113. At the same time, the ratio of the pitch of the spiral conveying blade 126 to the center distance of two adjacent screening holes 110 along the central axis is set to 1 or 2, so that the Chinese herbal medicine pieces are delivered from one side of the screening cylinder 109 under the action of the spiral conveying blade 126. The screening hole 110 is moved horizontally to another screening hole 110, and then the speed of the connecting shaft 104 is adjusted by the reducer 709, so that when the visual inspection module 108 is working, the angular velocity of the fixed shaft 105 is the same as the angular velocity of the screening cylinder 109, so that the relative position of the visual inspection module 108 and the Chinese herbal medicine pieces does not change when working, and then the screening hole valve 128 at the screening hole 110 corresponding to the Chinese herbal medicine pieces that do not meet the requirements is opened, so that the Chinese herbal medicine pieces that do not meet the quality requirements pass through the screening hole 110 into the miscellaneous material chamber 114; finally, the Chinese herbal medicine pieces that meet the quality requirements are sent to the thickness screening component 4 for thickness screening under the action of the spiral conveying blade 126, and the Chinese herbal medicine pieces that do not meet the quality requirements enter the miscellaneous material outlet chamber 115 from the miscellaneous material chamber 114 through the miscellaneous material port 116 under the action of gravity, and then the impurities in the miscellaneous material outlet chamber 115 are discharged through the discharge port of the impurity removal sleeve 3 by the slag discharge fan.

[0030] like Figure 13-16 As shown, the thickness screening component 4 includes a screening outer cylinder 401, which is cylindrical, and the angle between the screening outer cylinder 401 and the horizontal plane is 30-60 degrees. It also includes a transition plate 404, and the cross-section of the transition plate 404 is fan-shaped. The transition plate 404 extends inward from the end close to the wind selection and screening component 1. It also includes a screening inner cylinder 402, and the cross-section of the screening inner cylinder 402 is the same as the cross-section of the transition plate 404. The screening inner cylinder 402 extends from the transition plate 404 to the end of the screening inner cylinder 402 away from the wind selection and screening component 1. The screening inner cylinder 402 divides the screening outer cylinder 401 into two parts, the upper cavity of the screening inner cylinder 402 constitutes the screening outer cavity cylinder 406, and the lower cavity of the screening inner cylinder 402 constitutes the screening inner cavity cylinder 405. A thin film discharge port 407 is opened on the outer side of the screening outer cylinder 401 away from the end of the wind selection and screening component 1, and a dividing baffle 403 is provided on the inner wall of the screening inner cylinder 402.

[0031] The end faces of both sides of the dividing baffle 403 are provided with triangular connecting rods 409, and the cross-section of the triangular connecting rods 409 is a right-angled triangle shape. The dividing baffle 403 and the triangular connecting rods 409 on both sides constitute a straightening assembly, and a decoction piece slide rod 408 is provided between every two straightening assemblies. The cross-section of the decoction piece slide rod 408 is U-shaped, and a thickness screening seam 410 connecting the screening outer cavity tube 406 and the screening inner cavity tube 405 is opened between the decoction piece slide rod 408 and the straightening assembly.

[0032] The multi-stage screening assembly 5 comprises a multi-stage screening housing 501, the cross section of the multi-stage screening housing 501 is U-shaped, and a coaxially arranged inner screen cylinder 509, a middle screen cylinder 510 and an outer screen cylinder 511 are arranged in the multi-stage screening housing 501, wherein the angle between the inner screen cylinder 509 and the horizontal plane is 45-60 degrees, and the diameters of the sieve holes on the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder 511 gradually decrease, and also comprises a plugging plate, which is arranged at one end of the middle screen cylinder 510, and a through hole connecting the inner screen cylinder 509 and the outer screen cylinder 511 is opened in the middle of the plugging plate, and the through hole of the plugging plate is A multi-stage screening feed port 512 is provided at the multi-stage screening feed port 512, which extends from one end of the inner screen cylinder 509 to the top of the multi-stage screening shell 501, and the multi-stage screening feed port 512 is connected to the sheet discharge port 407, and also includes a multi-stage screening motor 502, and also includes a screening shaft 513, the screening shaft 513 is connected to the multi-stage screening motor 502 through a coupling, and a connecting rod is provided on the outside of the screening shaft 513, and the connecting rod is arranged at intervals along the circumferential direction of the outside of the screening shaft 513, and the connecting rod passes through the inner screen cylinder 509 and the middle screen cylinder 510 and then is fixedly connected to the outer screen cylinder 511.

[0033] like Figure 17-18 As shown, the multi-stage screening assembly 5 further includes an inner screening cylinder 506, a middle screening cylinder 507 and an outer screening cylinder 508 arranged coaxially, the inner screening cylinder 506, the middle screening cylinder 507 and the outer screening cylinder 508 are respectively connected to the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder 511, and the inner screening cylinder 506, the middle screening cylinder 507 and the outer screening cylinder 508 are respectively connected to the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder 511. The mesh cylinder 511 is rotatably matched through bearings, and baffles are provided on the ends of the multi-stage screening housing 501, the middle screening barrel 507 and the outer screening barrel 508 away from the multi-stage screening motor 502, and a waste outlet 503, a secondary outlet 504 and a middle outlet 505 are respectively provided on the outer sides of the multi-stage screening housing 501, the middle screening barrel 507 and the outer screening barrel 508 away from the thickness screening component 4, and the outlet of the inner screening barrel 506 constitutes a superior outlet.

[0034] In this embodiment, the Chinese herbal medicine slices after the initial screening enter the screening outer cavity cylinder 406 of the screening outer cylinder 401, and then move downward along the screening inner cylinder 402 under the action of gravity. The Chinese herbal medicine slices are tilted under the action of the slice slide rod 408 and slide toward the straightening assembly between the two slice slide rods 408. Since triangular connecting rods 409 are provided on both sides of the dividing baffle 403 of the straightening assembly, the Chinese herbal medicine slices are transformed from an inclined state to a vertical state, and finally fall into the thickness screening slot 410 between the triangular connecting rod 409 and the slice slide rod 408. The thicker slices cannot pass through the thickness screening slot 410 and finally roll down into the thick slice collection box 6 under the action of gravity. The slices that meet the thickness requirements pass through the thickness screening slot 410 into the screening inner cavity cylinder 405, and finally slide to the thin slice discharge port 407 under the action of gravity, and then fall into the multi-stage screening feed port 512 in the multi-stage screening assembly 5, and then By starting the multi-stage screening motor 502, the multi-stage screening motor 502 drives the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder 511 to rotate, and the Chinese herbal medicine pieces move downward along the central axis of the inner screen cylinder 509 under the action of centrifugal force and gravity, and at the same time, they make a circular motion around the inner wall surface of the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder 511. At the same time, due to the inner screen cylinder 509, the middle screen cylinder 510 and the outer screen cylinder The diameter of the sieve holes on 511 gradually decreases, thereby achieving the classification of the quality of Chinese herbal medicines. The high-quality Chinese herbal medicines in the inner screen cylinder 509 are sent into the high-quality collection frame through the inner sieve discharge cylinder 506, and the Chinese herbal medicines in the middle screen cylinder 510 and the outer screen cylinder 511 are sent into the corresponding collection frames through the intermediate discharge port 505 and the secondary discharge port 504 on the middle sieve discharge cylinder 507 and the outer sieve discharge cylinder 508 respectively, and impurities are discharged through the waste outlet 503.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A medicine screening machine for the production of Chinese herbal medicine slices, comprising a winnowing screening component and a thickness screening component connected in sequence, a multi-stage screening component is provided at the lower end of the thickness screening component, characterized in that: A fan assembly and a feed port are provided at the top of the air selection and screening component, a driving assembly is provided at one end of the air selection and screening component, the outlet of the air selection and screening component is connected to the thickness screening component, a debris removal sleeve is provided on the outside of the thickness screening component, and it also includes a thick sheet aggregate box, which is arranged at the outlet end of the thickness screening component, and also includes a multi-stage screening component, which is arranged at the lower end of the thickness screening component.

2. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 1, characterized in that: The wind selection screening component includes a U-shaped shell, a top cover plate is provided at the top of the shell, a through hole connecting the upper and lower ends of the top cover plate is opened at the top of the top cover plate, a feed port is screwed at the through hole of the top cover plate, a wind selection side plate is provided at the end of the shell away from the thickness screening component, the area surrounded by the shell, the wind selection side plate and the top cover plate constitutes a screening chamber, and also includes a sealing baffle, the sealing baffle is U-shaped and arranged parallel to the wind selection side plate, the sealing baffle is arranged in the screening chamber and the top of the sealing baffle is screwed to the top cover plate, an air induced draft frame is provided on the side of the sealing baffle close to the wind selection side plate, the cross section of the air induced draft frame is fan-shaped, and the air induced draft frame includes a fan-shaped ... A horizontal plate on the end face of the sealing baffle is provided with an induced draft cover plate at the top of the horizontal plate, an air port connected to the inside and outside of the induced draft frame is provided on the induced draft cover plate, an air outlet connected to the induced draft frame is opened on the sealing baffle, an air outlet duct is provided at the end of the sealing baffle away from the air selection side plate, the air outlet duct is annular, and the air outlet duct includes an inner air duct and an outer air duct arranged coaxially, the fan assembly includes a blower fan and an induced draft duct installed on the top of the top cover plate, the induced draft duct passes through the air selection side plate and is connected to the induced draft frame through a sealing flange, and also includes a material guide pipe, the cross-section of the material guide pipe is fan-shaped, and the outer diameter of the material guide pipe is the same as the outer diameter of the arc segment of the sealing baffle.

3. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 2, characterized in that: The drive assembly includes a motor arranged on one side of the air selection side plate, the output shaft of the motor passes through the air selection side plate and extends into the screening chamber, and also includes a first gear, the first gear is connected to the output shaft through a pin shaft, and also includes a transmission gear, the transmission gear is meshed with the first gear, and also includes a transmission gear shaft, the transmission gear shaft is respectively connected to the air selection side plate and the sealing baffle through a pin shaft, the transmission gear shaft is coaxial with the transmission gear and rotates through a bearing, and also includes a second gear, the second gear is meshed with the transmission gear, and also includes a second gear shaft, the second gear shaft is connected to the air selection side plate through a pin shaft, and the second The gear shaft is coaxial with the second gear and rotatably cooperates with it through a bearing. It also includes a transmission shaft, which is coaxial with the second gear shaft and connected to the second gear through a pin. A third gear is provided at the end of the transmission shaft away from the air selection side plate. The third gear is connected to the transmission shaft through a pin. It also includes a fourth gear, which is meshed with the third gear. A material baffle plate and a miscellaneous material baffle plate are respectively provided on both sides of the third gear, wherein the material baffle plate is provided on the side of the fourth gear close to the sealing baffle, the material baffle plate and the sealing baffle are arranged parallel to the sealing baffle, the top of the material baffle plate is screwed to the bottom of the top cover plate, and a through hole cooperating with the material guide pipe is opened in the middle of the material baffle plate.

4. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 3, characterized in that: The wind selection and screening component also includes a screening cylinder and an outer screening cylinder arranged coaxially, wherein the fourth gear is arranged between the screening cylinder and the outer screening cylinder, the fourth gear is connected to the screening cylinder in an integral manner, the screening cylinder and the miscellaneous material baffle are rotatably matched, the area surrounded by the screening cylinder constitutes a screening cylinder cavity, the cavity between the screening cylinder and the outer screening cylinder constitutes a miscellaneous material cavity, the cavity between the outer screening cylinder and the outer shell constitutes a miscellaneous material outlet cavity, a miscellaneous material port connecting the miscellaneous material cavity and the miscellaneous material outlet cavity is provided on the tube wall surface of the outer screening cylinder away from the top cover plate, a sealing baffle ring is provided at the end of the screening cylinder away from the sealing baffle, the sealing baffle ring is annular, and is connected to the outer screening cylinder in an integral manner, and the sealing baffle ring A plurality of screening holes are arranged on the wall of the screening cylinder through rotational cooperation with the bearing and the screening cylinder, a screening hole valve is arranged on the outer wall of the screening cylinder, and also includes a fixed shaft, which is coaxially arranged with the screening cylinder, and a connecting rotating shaft is arranged at the end of the fixed shaft near the sealing baffle, the connecting rotating shaft is coaxially arranged with the fixed shaft, the connecting rotating shaft extends to the sealing baffle end, a visual inspection module is arranged on the outside of the fixed shaft, and also includes a fixed shaft mounting frame, the fixed shaft mounting frame includes a fixed sleeve and a fixed connecting rod which are sleeved on the outside of the fixed shaft, the fixed connecting rod extends from the outside of the fixed sleeve to the inner wall of the sealing baffle ring, and the fixed connecting rod is threadedly connected with the sealing baffle ring.

5. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 4, characterized in that: The screening hole valve includes a fixed flange, which is groove-shaped and opens upward, and a fixed flange valve hole is opened in the middle of the fixed flange. It also includes a strip track, which runs through the fixed flange and is arranged at equal intervals around the fixed flange valve hole. An electromagnetic track is arranged in the strip track. It also includes a sliding valve flap, which is triangular in shape, and one corner of the sliding valve flap is chamfered. A slider is arranged at the end of the sliding valve flap close to the fixed flange, a permanent magnet is arranged in the slider, and a rotating column is arranged at the end of the sliding valve flap away from the fixed flange. A guide rail protrusion is arranged on one side of the sliding valve flap, and a guide rail groove is arranged on the other side of the sliding valve flap. The guide rail protrusions and guide rail grooves of every two adjacent sliding valve flaps are slidably matched. It also includes a cover flange and a rotating guide rail. The rotating guide rail runs through the cover flange, and a through hole is opened in the middle of the cover flange. It also includes a sealing flange, and a sealing flange with a sealing flange valve hole opened in the middle of the sealing flange.

6. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 5, characterized in that: The output shaft passes through the sealing baffle, and a reducer is provided at the end of the output shaft away from the motor. The connecting shaft is coaxially arranged with the output shaft through the reducer, and an air sleeve is provided at the end of the reducer away from the sealing baffle, and the air sleeve is connected with the air duct, and the air sleeve includes two air sleeve cover plates arranged in parallel, and an air sleeve is integrally provided on the outer side of the air sleeve cover plate, and the two air sleeve cover plates are both in sealing rotation with the connecting shaft, and an air inlet is opened on the outer wall of the air sleeve, and a hollow tube cavity is provided in the connecting shaft, and the hollow tube cavity extends from the end of the connecting shaft away from the sealing baffle to the air sleeve and is connected with the air sleeve, and the connecting shaft is provided with a hollow tube cavity. The rotating shaft and the fixed shaft are rotatably matched through a sealed bearing, an air intake pipe is arranged inside the fixed shaft, and the inner diameter of the air intake pipe is the same as the inner diameter of the hollow tube cavity connected to the rotating shaft, wherein multiple visual inspection modules installed on the outside of the fixed shaft are arranged at intervals, a nozzle mounting sleeve is provided between every two visual inspection modules, and multiple nozzles are provided axially on the outer side surface of the nozzle mounting sleeve, a spiral conveying blade is provided on the inner wall surface of the screening cylinder, and multiple fixed connecting rods are provided at the end of the spiral conveying blade near the sealing baffle, one end of the fixed connecting rod is threadedly connected to the spiral conveying blade, and the other end of the fixed connecting rod is threadedly connected to the connecting rotating shaft.

7. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 1, characterized in that: The thickness screening component includes a screening outer cylinder, which is cylindrical and has an angle of 30-60 degrees with the horizontal plane. It also includes a transition plate, whose cross-section is fan-shaped and extends inward from the end close to the wind selection and screening component. It also includes a screening inner cylinder, whose cross-section is the same as that of the transition plate. The screening inner cylinder extends from the transition plate to the end of the screening inner cylinder away from the wind selection and screening component. The screening inner cylinder divides the screening outer cylinder into two parts, upper and lower parts, wherein the cavity at the upper part of the screening inner cylinder constitutes the screening outer cavity cylinder, and the cavity at the lower part of the screening inner cylinder constitutes the screening inner cavity cylinder. A thin film discharge port is provided on the outer side of the screening outer cylinder away from the end of the wind selection and screening component, and a dividing baffle is provided on the inner wall of the screening inner cylinder.

8. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 7, characterized in that: The end faces of both sides of the dividing baffle are provided with triangular connecting rods, and the cross-section of the triangular connecting rods is in the shape of a right-angled triangle. The dividing baffle and the triangular connecting rods on both sides thereof constitute a straightening assembly, and a decoction piece slide rod is provided between every two straightening assemblies. The cross-section of the decoction piece slide rod is U-shaped, and a thickness screening seam connecting the screening outer cavity cylinder and the screening inner cavity cylinder is opened between the decoction piece slide rod and the straightening assembly.

9. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 7, characterized in that: The multi-stage screening assembly comprises a multi-stage screening housing, the cross section of which is U-shaped, and a coaxially arranged inner screen cylinder, a middle screen cylinder and an outer screen cylinder are arranged in the multi-stage screening housing, wherein the angle between the inner screen cylinder and the horizontal plane is 45-60 degrees, and the diameters of the screen holes on the inner screen cylinder, the middle screen cylinder and the outer screen cylinder gradually decrease, and also comprises a blocking plate, which is arranged at one end of the middle screen cylinder, and a through hole connecting the inner and outer screen cylinders is opened in the middle of the blocking plate, and a through hole connecting the inner and outer screen cylinders is opened in the blocking plate. A multi-stage screening feed port is provided at the through hole of the plate, and the multi-stage screening feed port extends from one end of the inner screen cylinder to the top of the multi-stage screening shell, and the multi-stage screening feed port is connected with the sheet discharge port. It also includes a multi-stage screening motor and a screening shaft, and the screening shaft is connected to the multi-stage screening motor through a coupling. A connecting rod is provided on the outside of the screening shaft, and the connecting rod is arranged at intervals along the circumferential direction of the outer side of the screening shaft. The connecting rod passes through the inner screen cylinder and the middle screen cylinder and is fixedly connected to the outer screen cylinder.

10. The Chinese herbal medicine screening machine for producing Chinese herbal medicine slices according to claim 9, characterized in that: The multi-stage screening component also includes an inner screening barrel, a middle screening barrel and an outer screening barrel which are coaxially arranged, and the inner screening barrel, the middle screening barrel and the outer screening barrel are respectively connected with the inner screen barrel, the middle screen barrel and the outer screen barrel, and the inner screening barrel, the middle screening barrel and the outer screening barrel are respectively rotatably matched with the inner screen barrel, the middle screen barrel and the outer screen barrel through bearings, baffles are provided on the ends of the multi-stage screening shell, the middle screening barrel and the outer screening barrel away from the multi-stage screening motor, and waste outlets, secondary outlets and intermediate outlets are respectively provided on the outer sides of the multi-stage screening shell, the middle screening barrel and the outer screening barrel away from the thickness screening component, and the outlet of the inner screening barrel constitutes a superior outlet.

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