Traditional Chinese medicine conveying device with visual detection and fresh processing technology

Abstract

The application discloses a traditional Chinese medicinal material conveying device with visual detection and a fresh processing technology, and relates to the technical field of conveying devices, comprising a conveying belt arranged on a rack, a material box for receiving raw materials arranged above the conveying belt, a surrounding frame arranged at the bottom end of the material box in a sliding mode, an equalizing frame arranged in the material box in a sliding mode, and a horizontal pipe arranged on the side of the material box in a sliding mode and moving synchronously with the equalizing frame. The horizontal pipe is used for moving and sucking impurities, and the conveying, automatic paving and surrounding fence dust removal of traditional Chinese medicinal material raw materials are simultaneously realized, the surface cleanliness of the raw materials is effectively improved, a stable and non-interfering detection environment is provided for subsequent visual detection, and the automation degree and production efficiency of the device are improved. The problem that impurities such as floating dust and chippings are attached to the surface of the raw materials or stay in the gaps of the raw materials and cannot be simultaneously removed in the conveying and feeding process is solved.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, and in particular to a conveying device for Chinese medicinal materials with visual inspection and a fresh processing technology. Background Technology

[0002] After being dried and sliced, root and rhizome Chinese medicinal materials such as Angelica sinensis and Codonopsis pilosula need to be transported for visual defect detection before being sorted, packaged, and stored. Visual detection has high requirements for the flat, single-layered arrangement of slices and surface cleanliness. If materials are stacked or piled up during transportation, or if dust, debris, or impurities adhere to the surface of the slices, it is easy to obscure the morphological characteristics of the medicinal materials, leading to missed or false detections of defects such as insect infestation and mold, which affects the quality and grading accuracy of the finished Chinese medicinal materials.

[0003] When existing Chinese medicinal material conveying devices are used to transport and inspect raw materials, the spreading process can only spread the raw materials on the conveyor belt to achieve a single-layer distribution. However, impurities such as floating dust and debris still adhere to the surface of the raw materials or remain in the gaps between the raw materials. They cannot be removed simultaneously during the conveying and feeding process. Even if an independent impurity removal mechanism is added to the conveying path, the spread material is already in a compacted state, making it difficult to fully expose and separate impurities. In addition, the extra impurity removal station prolongs the conveying path and reduces the overall processing efficiency.

[0004] Therefore, it is necessary to propose a Chinese medicinal herb conveying device with visual detection and a fresh processing technology to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a Chinese medicinal herb conveying device with visual inspection and a fresh processing technology to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a Chinese herbal medicine conveying device with visual detection function, comprising a conveyor belt disposed on a frame, a material box for receiving raw materials disposed above the conveyor belt, and a frame slidably disposed at the bottom end of the material box; The material box is equipped with a sliding frame inside; The side of the material box is slidably provided with a horizontal tube that moves synchronously with the uniform frame; A first electromagnet is fixedly installed on the outer wall of the material box. The first electromagnet is located above the horizontal tube. A rubber part is provided at the top of the horizontal tube. A magnetic block is fixedly embedded at the top of the rubber part. A second electromagnet is fixedly embedded at the top of the frame. The magnetic block and the second electromagnet are both in cooperation with the first electromagnet. During feeding, the first electromagnet and the second electromagnet repel each other, causing the frame to slide downward and abut against the conveyor belt. After the raw material is fed from above the material box, it enters the equalization frame. The horizontal tube drives the equalization frame to move back and forth along the length of the material box, and the raw material is spread flat on the conveyor belt. During the process of the raw material falling from the uniform frame and when the raw material is spread on the conveyor belt, impurities are sucked up by moving through the horizontal tube; During the reciprocating movement of the horizontal tube, when the magnetic block and the first electromagnet are directly opposite each other, the repulsive force generated between them causes the rubber part to deform downward, temporarily isolating the inside of the horizontal tube. The suction force of the negative pressure in the horizontal tube is stored. As the horizontal tube continues to move, after the magnetic block and the first electromagnet are misaligned, the suction force generated by the horizontal tube increases, and the suction force changes periodically.

[0007] Preferably, the width of the enclosure is smaller than the width of the conveyor belt.

[0008] Preferably, a support cover is provided in the annular space of the conveyor belt, the top of the support cover is open, and a through hole is provided on the conveyor belt to cooperate with the support cover. The support cover is connected to the factory gas conveying pipeline, and the frame and the support cover are distributed vertically and vertically respectively. During loading, both the enclosure and the support cover should be in contact with the conveyor belt; During transport, both the frame and the support cover are separated from the conveyor belt.

[0009] Preferably, a square tube is fixedly installed at the bottom of the frame, the square tube is fixed on the horizontal tube and the horizontal tube is connected to the square tube, and a suction hole is opened at the bottom of the square tube.

[0010] Preferably, the testing equipment is fixedly installed on the frame; The detection equipment includes a near-infrared spectral imaging detector, which performs visual detection of raw materials in the conveying state through optical imaging and scanning.

[0011] Preferably, the width of the first electromagnet is greater than the width of the horizontal tube; A second electric push rod is fixedly connected to the outer wall of the material box. A connecting plate is fixedly connected to the telescopic end of the second electric push rod. The end of the connecting plate away from the second electric push rod is fixedly connected to the horizontal tube.

[0012] Preferably, elastic sheets are fixed on both sides of the top of the uniform frame, with the end of the elastic sheet away from the uniform frame tilted upward and fixed to the inner wall of the material box.

[0013] Preferably, the uniform frame has a closed plate inside, and the material feeding conduction area of ​​the uniform frame is controlled by adjusting the opening and closing range of the closed plate.

[0014] Preferably, a spring is fixedly connected to the top of the frame, and the top of the spring is fixedly connected to the outer wall of the material box.

[0015] This invention also discloses a fresh processing method using a Chinese medicinal herb conveying device with visual inspection function, and includes the following operating steps: S1. Pretreatment: The fresh Chinese medicinal materials after harvesting are washed, cleaned, dried, shaped, and cut to obtain raw material slices. S2. Automatic spreading and dust removal: The frame is driven to slide down and abut against the conveyor belt to form a barrier limit. Then, the uniform frame moves back and forth along the length of the material box. When the raw material slices are evenly spread on the conveyor belt through the material box and the uniform frame, the horizontal tube that moves synchronously with the uniform frame is used for suction and moving dust removal. When the first electromagnet and the magnetic block are aligned and cooperate, the rubber part deforms to block the internal passage of the horizontal tube, briefly forming a negative pressure and periodically increasing the suction force. S3. Visual inspection: After single-layer flattening and dust removal, the raw material slices are conveyed to the inspection station by the conveyor belt. The raw material slices in the conveying state are subjected to visual non-destructive inspection by optical imaging and scanning to identify insect-infested defects. S4. Graded packaging: Qualified medicinal materials directly enter the packaging process, are sorted and classified and stored in the warehouse.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention, through the combination of a material box and a uniform frame structure, can form a dust removal space during the conveying process. During the process of the raw material falling from the uniform frame and when the raw material is laid flat on the conveyor belt, impurities are suctioned out by a horizontal tube. This simultaneously realizes the conveying, automatic laying and enclosed dust removal of Chinese medicinal materials, effectively improving the surface cleanliness of the raw materials and providing a stable and interference-free inspection environment for subsequent visual inspection. This improves the automation level and production efficiency of the device and solves the problem in traditional technology that impurities such as floating dust and debris adhere to the surface of the raw materials or remain in the gaps between the raw materials and cannot be removed simultaneously during the conveying and feeding process. 2. By cooperating with the first electromagnet, the magnetic block and the second electromagnet, the magnetic repulsion force is used to control the up and down movement of the frame to form a dust removal space, and at the same time the partition inside the horizontal tube is realized, the suction force is periodically increased and the dust removal effect is improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the Chinese medicinal material conveying device with visual detection function of the present invention.

[0018] Figure 2 This is a schematic diagram of the material box and frame structure of the present invention.

[0019] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0020] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B.

[0021] Figure 5 This is a schematic diagram of the frame and support structure of the present invention.

[0022] Figure 6 For the present invention Figure 5Enlarged schematic diagram of the structure at point C.

[0023] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point D.

[0024] Figure 8 This is a schematic diagram of the support plate and the third electric push rod structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the horizontal tube and connecting plate of the present invention.

[0026] Figure 10 This is a schematic diagram of the square tube and suction hole structure of the present invention.

[0027] In the diagram: 1. Frame; 2. Conveyor belt; 201. Through hole; 3. Testing equipment; 4. Material box; 5. Frame; 6. Elastic sheet; 7. Guide channel; 701. Vertical channel section; 702. Bottom channel section; 8. Closing plate; 9. Channel rod; 10. Top block; 11. First electric push rod; 12. Square tube; 13. Suction hole; 14. Square channel; 15. Horizontal tube; 16. First electromagnet; 17. Rubber part; 18. Magnetic block; 19. Fixing tube; 20. Connecting plate; 21. Second electric push rod; 22. Enclosure frame; 23. Support cover; 24. Conveying pipe; 25. Support plate; 26. Third electric push rod; 27. Spring; 28. Second electromagnet; 29. ​​End roller; 30. Motor. Detailed Implementation

[0028] This invention provides, for example Figures 1-10 The device shown is a Chinese medicinal herb conveying system with visual inspection capabilities. It is suitable for conveying neatly shaped Chinese medicinal herbs such as roots, rhizomes, fruits, and seeds in a single layer, like Angelica sinensis and Codonopsis pilosula. During the fresh processing stage, it conveys the herbs after drying and cutting. First, it cleans and removes surface dust, debris, and other impurities. The cleaned herbs are then kept flat without being turned over or disturbed, allowing for inspection of appearance defects, broken corners, insect damage, and quality grade. After inspection, the herbs proceed to the packaging stage. It can also be used in other industrial production fields, such as online inspection of the appearance and quality of food raw materials, automated material conveying, and visual sorting.

[0029] The device specifically includes a frame 1, on which a conveyor belt 2 is installed for conveying raw materials. The conveyor belt 2 has several through holes 201 for ventilation. The inner diameter of the through holes 201 is small, so the raw materials will not fall through the through holes 201. For example, Angelica sinensis raw materials are mostly irregular blocks, and the size of the raw materials for conventional sorting and processing is generally in the range of 20mm to 70mm. The diameter of the through holes 201 is set to 6mm to 10mm. The diameter of the through holes 201 is much smaller than the minimum size of the Angelica sinensis raw materials. During the conveying operation, the Angelica sinensis raw materials are stably supported on the surface of the conveyor belt 2 and will not fall from the through holes 201. The conveyor belt 2 can be made of food-grade PU (polyurethane) material, which does not release plasticizers or odors and will not affect the raw materials. It can also be made of food-grade stainless steel mesh belt (304 or 316 stainless steel material), depending on the specific application.

[0030] Reference Figure 1 As shown, a detection device 3 is fixedly installed on the frame 1 for detecting quality problems such as insect infestation on the raw materials on the conveyor belt 2. The detection device 3 includes a near-infrared spectral imaging detector. The instrument's detection end faces the conveyor belt 2 and performs visual detection on the raw materials in the conveying state through optical imaging and scanning to identify insect infestation defects in the raw materials. Moreover, there is no need to turn or move the raw materials during the detection process. It is suitable for continuous conveying and detection operations on the production line, with strong detection continuity and high detection efficiency.

[0031] The specific working conditions are as follows (taking Angelica sinensis as an example): The raw materials of Angelica sinensis were tested using an FX-300 near-infrared spectroscopy imaging instrument. The test was based on the absorption spectral parameters of the organic matter inside the medicinal material, with a standard parameter threshold of 420–580 abs.

[0032] When the organic matter spectral absorption parameter of the raw angelica is lower than the standard threshold of 420 abs, it is determined that there may be cavities or insect infestation inside the raw angelica, and this part of the raw angelica needs to be removed. When the organic matter spectral absorption parameter of the raw angelica is higher than the standard threshold of 580 abs, it is determined that the raw angelica is damp and moldy, has abnormal sugar accumulation, or has deteriorated, and this part of the raw angelica needs to be removed (the removal process can be done manually or by an automated robot, which will not be described in detail here).

[0033] Reference Figure 1 , Figure 2 , Figure 5 and Figure 8As shown, considering that after the slitting process, the surface of the raw materials is prone to be covered with impurities such as floating dust and debris, which can easily affect the testing effect if not treated in time, in order to achieve efficient conveying and improve the testing effect, a material box 4 is set above the conveyor belt 2. The material box 4 is fixed on the frame 1, and a set gap is reserved between the bottom of the material box 4 and the top surface of the conveyor belt 2. The maximum thickness of the raw materials laid flat during conveying is less than the set gap. When in use, the material is fed from the material box 4, so that the Chinese medicinal materials fall onto the conveyor belt 2.

[0034] A frame 22 is slidably provided at the bottom of the outer wall of the material box 4. The frame 22 can slide downward to abut against the conveyor belt 2, and can also return upward to its bottom end being flush with the bottom end of the material box 4, without affecting the movement of the raw materials falling on the conveyor belt 2 with the conveyor belt 2. A spring 27 is fixedly connected to the top of the frame 22, and the top of the spring 27 is fixedly connected to the outer wall of the material box 4. The spring 27 is provided to assist the frame 22 in returning to its original position. Furthermore, a structure such as ball bearings and rubber pads (not shown in the figure) is provided between the frame 22 and the material box 4 to reduce wear and ensure smooth sliding.

[0035] It should be noted that the width of the frame 22 is smaller than the width of the conveyor belt 2. When the frame 22 abuts against the conveyor belt 2, there is a certain distance between its outer wall and the edge of the conveyor belt 2. Even if the raw material that was originally attached to the inner wall of the frame 22 slightly flips outward at the moment the frame 22 moves upward, it will not fall off the conveyor belt 2.

[0036] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, considering that if the raw material is poured directly from the top of the material box 4 onto the conveyor belt 2, it is difficult to make the raw material evenly spread on the conveyor belt 2, in order to improve processing efficiency, a uniform frame 5 is slidably arranged inside the material box 4. The uniform frame 5 moves back and forth along the length direction of the material box 4. Both ends of the uniform frame 5 along the width direction of the conveyor belt 2 are attached to the inner wall of the material box 4, and wear-resistant pads are set at the attachment positions to reduce wear. Elastic sheets 6 are fixed on both sides of the top of the uniform frame 5. The end of the elastic sheet 6 away from the uniform frame 5 is inclined upward and fixed to the inner wall of the material box 4. At the same time, the other two sides of the elastic sheet 6 are attached to the inner wall of the material box 4 for adaptive sliding.

[0037] It should be noted that the elastic sheet 6 can be, but is not limited to, food-grade silicone elastic sheet, which is non-toxic and odorless, and has a certain load-bearing capacity. In actual use, the operator or feeding equipment such as a screw conveyor can intermittently pour raw materials into the material box 4 to ensure that the weight of the raw materials temporarily stored in the material box 4 is appropriate and the elastic sheet 6 will not arbitrarily dent or deform. The operator should regularly inspect and replace the elastic sheet 6.

[0038] Reference Figure 5 and Figure 6 As shown, when the equalizing frame 5 moves to the left inside the material box 4, the left elastic sheet 6 contracts and the right elastic sheet 6 extends; when the equalizing frame 5 moves to the right inside the material box 4, the left elastic sheet 6 extends and the right elastic sheet 6 contracts. When the equalizing frame 5 moves back and forth inside the material box 4, the raw material can be evenly spread onto the conveyor belt 2 by the equalizing frame 5, and then visual inspection is performed. At the same time, the back and forth movement of the equalizing frame 5 can loosen the raw material by swinging, reducing the possibility of blockage.

[0039] Reference Figure 5 and Figure 8 As shown, in order to clean the floating dust, debris and other impurities attached to the surface of the raw materials, ensure the effect of visual inspection, and improve the efficiency of the conveying device, a support cover 23 is set in the annular space of the conveyor belt 2. The frame 22 and the support cover 23 are distributed vertically and vertically respectively. The top of the support cover 23 is open, and the length and width of the support cover 23 are adapted to the frame 22. The side of the support cover 23 is connected to the conveying pipe 24, which is connected to the gas conveying pipeline of the factory. Gas is conveyed into the support cover 23 through the conveying pipe 24. A support plate 25 is fixedly installed on the frame 1. A third electric push rod 26 is installed on the top of the support plate 25. The support cover 23 is fixedly connected to the telescopic end of the third electric push rod 26. The support cover 23 is moved up and down by controlling the third electric push rod 26.

[0040] Reference Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, a square tube 12 is fixedly installed at the bottom of the uniform frame 5. The bottom of the square tube 12 is provided with multiple suction holes 13. The square tube 12 can move back and forth synchronously with the uniform frame 5 to expand the suction coverage area and ensure suction efficiency.

[0041] A square groove 14 is provided through the side wall of the material box 4. A horizontal tube 15 is slidably arranged inside the square groove 14. The horizontal tube 15 is fixedly connected to the square tube 12 and the horizontal tube 15 is connected to the square tube 12. A fixed tube 19 is fixedly connected to one end of the horizontal tube 15 outside the material box 4. The horizontal tube 15 is connected to the fixed tube 19. The fixed tube 19 is connected to the factory suction pipe through a flexible tube. Impurities are sucked out by the fixed tube 19, the horizontal tube 15, the square tube 12 and the suction hole 13.

[0042] Meanwhile, a second electric push rod 21 is fixedly connected to the outer wall of the material box 4, and a connecting plate 20 is fixedly connected to the telescopic end of the second electric push rod 21. The end of the connecting plate 20 away from the second electric push rod 21 is fixedly connected to the horizontal tube 15. The second electric push rod 21 and the connecting plate 20 are used to drive the horizontal tube 15 to slide in the square groove 14, thereby realizing the reciprocating movement of the uniform frame 5.

[0043] Reference Figure 2 , Figure 5 and Figure 7 As shown, a first electromagnet 16 is fixedly installed on the outer wall of the material box 4. The first electromagnet 16 is located above the horizontal tube 15, and the width of the first electromagnet 16 is greater than the width of the horizontal tube 15. A second electromagnet 28 is fixedly embedded in the top of the frame 22. The first electromagnet 16 and the second electromagnet 28 cooperate with each other. The material box 4, the frame 22 and other structures are all made of hard plastic and are not affected by magnetic force. When the first electromagnet 16 and the second electromagnet 28 are activated, the magnetic properties of the sides of the first electromagnet 16 and the second electromagnet 28 that are close to each other are the same. Under the action of repulsive force, the frame 22 slides downward outside the material box 4, and the spring 27 extends until the bottom end of the frame 22 abuts against the conveyor belt 2. When the first electromagnet 16 is closed, the restoring force of the spring 27 causes the frame 22 to return to its original position.

[0044] In actual use, after the conveyor belt 2 stops running, the second electric push rod 21 and the connecting plate 20 drive the uniform frame 5 to move back and forth, so that the raw material is evenly spread on the conveyor belt 2 with a suitable thickness.

[0045] Next, the first electromagnet 16 and the second electromagnet 28 are activated, controlling the magnetic properties of the sides of the first electromagnet 16 and the second electromagnet 28 that are close to each other to be the same. Under the action of repulsive force, the frame 22 slides downward outside the material box 4 until the bottom end of the frame 22 abuts against the conveyor belt 2. At the same time, the telescopic end of the third electric push rod 26 is extended, driving the support cover 23 to move upward and fit against the conveyor belt 2, forming a dust removal space with upper pressure and lower support. Dust removal is carried out in this dust removal space to avoid mutual interference with the external environment, ensure dust removal efficiency, and the frame 22 also acts as a barrier to prevent raw materials from scattering randomly. When the frame 22 abuts against the conveyor belt 2 and the raw materials fall onto the conveyor belt 2, it will exert a certain pressure on the conveyor belt 2. When the support cover 23 moves upward and fits against the conveyor belt 2, it will form a rigid support, preventing the conveyor belt 2 from shaking, reducing the pressure on the conveyor belt 2, and extending its service life.

[0046] The control frame 5 moves from one end of the material box 4 to the other end, so that the raw material falls evenly and spreads on the conveyor belt 2. During the falling process, gas is delivered into the support 23 through the conveying pipe 24 and blown upward through the through hole 201 to blow the dynamic raw material, which facilitates the rapid removal of impurities attached to the outside of the raw material. At the same time, the fixed pipe 19, horizontal pipe 15, square tube 12 and suction hole 13 are used for suction, so that the gas in the dust removal space is circulated to achieve dust removal and facilitate subsequent visual inspection. The square tube 12 moves back and forth synchronously with the control frame 5 to ensure the coverage of the suction.

[0047] It should be noted that the air pressure and velocity of the blowing and suction airflows are appropriate and will not excessively disturb the falling of the raw materials. Furthermore, the dynamic changes in airflow can be controlled. For example, during the impurity blowing and cleaning stage, the air pressure and velocity can be increased to enhance the effect of removing and collecting floating dust and impurities. Subsequently, the air pressure and velocity can be decreased to ensure the stable falling of the raw materials. Adjustments can be made according to the specific usage conditions.

[0048] After dust removal, the frame 5 and other components are reset, and the extension end of the third electric push rod 26 is retracted. The cover 23 is reset downward, weakening the magnetic repulsion between the first electromagnet 16 and the second electromagnet 28. With the assistance of the reset elastic force of the spring 27, the frame 22 is reset upward by a small distance, which does not affect the continued operation of the conveyor belt 2.

[0049] Taking Angelica slicing raw material as an example: the distance between the bottom end of the frame 22 and the top surface of the conveyor belt 2 is adapted to the thickness of the Angelica slicing. For example, when Angelica is cut into slices with a thickness of 10-15mm, the distance between the bottom end of the frame 22 and the top surface of the conveyor belt 2 is set to 16-20mm. This distance is greater than the thickness of a single Angelica slicing, but less than the total thickness of two Angelica slicings. The stacked Angelica slicings will be limited, scraped, and separated into layers by the bottom edge of the frame 22 during the movement of the conveyor belt 2, thereby ensuring that the single Angelica slicing is laid flat on the conveyor belt 2 without overlapping and affecting the detection.

[0050] It should be noted that the frame 1 is equipped with a current regulating controller (not shown in the figure) that cooperates with the first electromagnet 16 and the second electromagnet 28. The operating current supplied to the first electromagnet 16 and the second electromagnet 28 is adjusted by the current regulating controller, thereby weakening the magnetic repulsion between the first electromagnet 16 and the second electromagnet 28. Magnetic repulsion control is a common existing technology and will not be described in detail here.

[0051] Next, the conveyor belt 2 carries the dust-removed raw materials to a location close to the testing equipment 3, where the testing equipment 3 performs visual inspection.

[0052] Reference Figure 5 and Figure 7 As shown, a rubber part 17 is provided at the top of the horizontal tube 15. The rubber part 17 is made of rubber and there are multiple rubber parts 17. The multiple rubber parts 17 are evenly distributed. A magnetic block 18 is fixedly embedded at the top of the rubber part 17. The first electromagnet 16 cooperates with the magnetic block 18. Since the width of the first electromagnet 16 is greater than the width of the horizontal tube 15, the first electromagnet 16 can cooperate with the magnetic block 18 and the second electromagnet 28 at the same time.

[0053] During the dust removal process, the first electromagnet 16 is activated. The magnetic properties of the first electromagnet 16 and the second electromagnet 28 on their adjacent sides are the same. Under the action of repulsive force, the frame 22 slides downwards and abuts against the conveyor belt 2. Simultaneously, the second electric push rod 21 drives the horizontal tube 15 to slide within the square groove 14. When the first electromagnet 16 and the magnetic block 18 are directly opposite each other, their magnetic properties on their adjacent sides are the same. Under the action of repulsive force, the magnetic block 18 moves downwards until it adheres to the bottom end of the horizontal tube 15, and the rubber part 17 is pressed down accordingly, generating appropriate... The flexible deformation isolates the interior of the horizontal tube 15, while still maintaining suction inside the horizontal tube 15, creating a negative pressure inside the horizontal tube 15. Then, the horizontal tube 15 continues to move, the first electromagnet 16 and the magnetic block 18 are misaligned, the rubber part 17 is reset, and the interior of the horizontal tube 15 is connected. The negative pressure increases the instantaneous suction force at the suction hole 13, improving the impurity suction effect. As multiple magnetic blocks 18 sequentially cooperate with the first electromagnet 16, the suction force is periodically increased during the movement of the square tube 12 and the suction hole 13, achieving large-scale and high-efficiency dust removal.

[0054] By cooperating with the first electromagnet 16, the magnetic block 18 and the second electromagnet 28, the magnetic repulsion force is used to control the frame 22 to move up and down to form a dust removal space, and at the same time, the partition inside the horizontal tube 15 is realized, periodically increasing the suction force.

[0055] In summary, the present invention, through the cooperation of the material box 4, the uniform frame 5 and the support cover 23, can form an intermittent upper-pressing and lower-supporting dust removal space during the conveying process, simultaneously realizing the conveying, automatic leveling and enclosure-type dust removal of Chinese medicinal materials, effectively improving the surface cleanliness of the raw materials, providing a stable and interference-free detection environment for subsequent visual inspection, and thus improving the automation level and production efficiency of the device.

[0056] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in order to control the instantaneous feeding amount, a closed plate 8 is provided inside the uniform frame 5. A guide channel 7 is provided on the inner wall of the uniform frame 5. The guide channel 7 includes a vertical channel section 701 and a bottom channel section 702. The bottom channel section 702 is located at the bottom end of the vertical channel section 701. The vertical channel section 701 is vertically distributed, and the bottom channel section 702 is inclined. The end of the bottom channel section 702 that is connected to the vertical channel section 701 is inclined upward. Both ends of the closed plate 8 are rotatably connected to the channel rods 9. The two channel rods 9 slide in the vertical channel section 701 and the bottom channel section 702 respectively.

[0057] The top block 10 is rotatably connected to the groove rod 9 that slides within the vertical groove section 701. The top of the frame 5 is fixedly connected to the first electric push rod 11. The first electric push rod 11 is connected to the factory power supply through a wire with a protective layer, and the wiring is reasonable so as not to affect the feeding of raw materials. The top block 10 is fixedly connected to the telescopic end of the first electric push rod 11, and the end of the groove rod 9 can be equipped with ball bearings, etc., to ensure the smooth cooperation between the groove rod 9 and the vertical groove section 701 and the bottom groove section 702. At the same time, the depth of the vertical groove section 701 and the bottom groove section 702 is small, so there will be no raw material residue.

[0058] When the extension end of the first electric push rod 11 is extended, it drives the top block 10 to move downward, causing the groove rod 9 inside the vertical groove section 701 to slide downward inside, while the groove rod 9 inside the bottom groove section 702 slides to the left inside, and the closing plate 8 moves; when the groove rod 9 inside the vertical groove section 701 slides downward to the lowest point inside, the groove rod 9 inside the bottom groove section 702 slides to the leftmost point inside, at which point the closing plate 8 closes the frame 5; if the extension end of the first electric push rod 11 is retracted, the frame 5 can be opened.

[0059] Furthermore, the opening area of ​​the uniform frame 5 can be controlled by the closed plate 8, thereby controlling the instantaneous feeding amount. In addition, if the single feeding amount reaches the requirement, the uniform frame 5 can be completely closed to stop feeding.

[0060] Furthermore, by controlling the reciprocating motion of the closed plate 8, the raw materials in the equalization frame 5 can be turned over, preventing blockage in the equalization frame 5 and solving the problem of easy blockage of the control valve in traditional technology.

[0061] Reference Figure 1 As shown, end rollers 29 are rotatably installed at both ends of the frame 1. The two end rollers 29 are connected by a conveyor belt 2. A motor 30 is fixedly connected to the outer wall of the frame 1. One of the end rollers 29 is fixedly connected to the drive shaft of the motor 30. The motor 30 and other structures are connected to the factory's power supply. In use, the motor 30 drives the end roller 29 fixedly connected to its drive shaft to rotate, and with the cooperation of the other end roller 29, the conveyor belt 2 rotates.

[0062] This invention also discloses a fresh processing method (taking Angelica sinensis as an example), which uses the above-mentioned Chinese medicinal material conveying device with visual detection function, and further includes the following operating steps: S1. Pre-treatment: The fresh Chinese medicinal materials after harvesting are washed, cleaned, dried, shaped and cut in sequence to remove mud and impurities attached to the raw materials. After drying to adjust the moisture content of the raw materials, they are cut into raw material slices to prepare for subsequent single-layer flat conveying and visual inspection. S2. Automatic leveling and dust removal: The magnetic repulsion of the first electromagnet 16 and the second electromagnet 28 causes the frame 22 to slide down and abut against the conveyor belt 2. At the same time, the third electric push rod 26 drives the support cover 23 to move up and fit against the conveyor belt 2, forming a dust removal area with upper pressure and lower support, and providing rigid support for the conveyor belt 2. Next, the uniform frame 5 moves back and forth along the length of the material box 4, so that the raw material slices are evenly spread on the conveyor belt 2 through the material box 4 and the uniform frame 5. At the same time, the horizontal tube 15, which moves synchronously with the uniform frame 5, is used for suction-type dust removal. When the first electromagnet 16 and the magnetic block 18 are aligned and engaged, the rubber part 17 deforms and blocks the internal passage of the horizontal tube 15, forming a negative pressure briefly and periodically increasing the suction force. S3. Visual inspection: After single-layer flattening and dust removal, the raw material slices are transferred to the inspection station by conveyor belt 2. Visual non-destructive inspection of the raw material slices in the conveying state is carried out by optical imaging and scanning to identify insect-infested defects. S4. Grading and Packaging: After visual inspection and sorting, raw material slices with defects such as insect infestation and mold are collected and disposed of separately. Qualified raw material slices that meet the standards in appearance and internal quality are sent to the subsequent packaging process. After being neatly packaged, they are classified and stored in the warehouse according to specifications, completing the entire process of processing Chinese medicinal materials while they are fresh.

Claims

1. A traditional Chinese medicine conveying device with visual inspection function, comprising a conveyor belt mounted on a frame, characterized in that: A material box for receiving raw materials is provided above the conveyor belt, and a frame is slidably provided at the bottom of the material box; The material box is equipped with a sliding frame inside; The side of the material box is slidably provided with a horizontal tube that moves synchronously with the uniform frame; A first electromagnet is fixedly installed on the outer wall of the material box. The first electromagnet is located above the horizontal tube. A rubber part is provided at the top of the horizontal tube. A magnetic block is fixedly embedded at the top of the rubber part. A second electromagnet is fixedly embedded at the top of the frame. The magnetic block and the second electromagnet are both in cooperation with the first electromagnet. During feeding, the first electromagnet and the second electromagnet repel each other, causing the frame to slide downward and abut against the conveyor belt. After the raw material is fed from above the material box, it enters the equalization frame. The horizontal tube drives the equalization frame to move back and forth along the length of the material box, and the raw material is spread flat on the conveyor belt. During the process of the raw material falling from the uniform frame and when the raw material is spread on the conveyor belt, impurities are sucked up by moving through the horizontal tube; During the reciprocating movement of the horizontal tube, when the magnetic block and the first electromagnet are directly opposite each other, the repulsive force generated between them causes the rubber part to deform downward, temporarily isolating the inside of the horizontal tube. The suction force of the negative pressure in the horizontal tube is stored. As the horizontal tube continues to move, after the magnetic block and the first electromagnet are misaligned, the suction force generated by the horizontal tube increases, and the suction force changes periodically.

2. The herbal medicine conveying device with visual detection function according to claim 1, characterized in that: The width of the enclosure is smaller than the width of the conveyor belt.

3. The herbal medicine conveying device with visual detection function according to claim 1, characterized in that: A support cover is provided in the annular space of the conveyor belt. The top of the support cover is open. The conveyor belt has through holes that cooperate with the support cover. The support cover is connected to the factory gas conveying pipeline. The frame and the support cover are distributed vertically and vertically. During loading, both the enclosure and the support cover should be in contact with the conveyor belt; During transport, both the frame and the support cover are separated from the conveyor belt.

4. The herbal medicine conveying device with visual detection function according to claim 1, characterized in that: A square tube is fixedly installed at the bottom of the frame. The square tube is fixed on the horizontal tube and the horizontal tube is connected to the square tube. A suction hole is opened at the bottom of the square tube.

5. A traditional Chinese medicine conveying device with visual detection function according to claim 1, characterized in that: The testing equipment is fixedly installed on the frame; The detection equipment includes a near-infrared spectral imaging detector, which performs visual detection of raw materials in the conveying state through optical imaging and scanning.

6. A traditional Chinese medicine conveying device with visual detection function according to claim 1, characterized in that: The width of the first electromagnet is greater than the width of the horizontal tube; A second electric push rod is fixedly connected to the outer wall of the material box. A connecting plate is fixedly connected to the telescopic end of the second electric push rod. The end of the connecting plate away from the second electric push rod is fixedly connected to the horizontal tube.

7. A traditional Chinese medicine conveying device with visual detection function according to claim 1, characterized in that: Elastic sheets are fixed on both sides of the top of the uniform frame. The end of the elastic sheet away from the uniform frame is tilted upward and fixed to the inner wall of the material box.

8. A traditional Chinese medicine conveying device with visual detection function according to claim 1, characterized in that: The uniform frame has a closed plate inside, and the material feeding conduction area of ​​the uniform frame can be controlled by adjusting the opening and closing range of the closed plate.

9. A traditional Chinese medicine conveying device with visual detection function according to claim 1, characterized in that: A spring is fixedly connected to the top of the frame, and the top of the spring is fixedly connected to the outer wall of the material box.

10. A fresh processing technique, characterized in that: The traditional Chinese medicine conveying device with visual detection function as described in any one of claims 1 to 9 further includes the following operating steps: S1. Pretreatment: The fresh Chinese medicinal materials after harvesting are washed, cleaned, dried, shaped, and cut to obtain raw material slices. S2. Automatic spreading and dust removal: The frame is driven to slide down and abut against the conveyor belt to form a barrier limit. Then, the uniform frame moves back and forth along the length of the material box. When the raw material slices are evenly spread on the conveyor belt through the material box and the uniform frame, the horizontal tube that moves synchronously with the uniform frame is used for suction and moving dust removal. When the first electromagnet and the magnetic block are aligned and cooperate, the rubber part deforms to block the internal passage of the horizontal tube, briefly forming a negative pressure and periodically increasing the suction force. S3. Visual inspection: After single-layer flattening and dust removal, the raw material slices are conveyed to the inspection station by the conveyor belt. The raw material slices in the conveying state are subjected to visual non-destructive inspection by optical imaging and scanning to identify insect-infested defects. S4. Graded packaging: Qualified medicinal materials directly enter the packaging process, are sorted and classified and stored in the warehouse.

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