Ginkgo leaf raw material conveying equipment

Abstract

The invention discloses ginkgo leaf raw material conveying equipment which comprises a first conveying mechanism, a detection mechanism, an extrusion mechanism, an outer cylinder and an inner cylinder, the inner cylinder is rotationally connected into the outer cylinder, a spiral piece is arranged on the inner cylinder, and a plurality of first drying units which are evenly distributed are fixedly connected to the inner wall of the outer cylinder; a plurality of first drying units are fixedly connected to the inner wall of the inner cylinder, a plurality of second drying units matched with the first drying units are fixedly connected to the outer wall of the inner cylinder, a plurality of second ribs are fixedly connected to the inner wall of the outer cylinder, first ribs matched with the second ribs are fixedly connected to the outer wall of the inner cylinder, and the first ribs and the second ribs are matched to rub the ginkgo leaves. Compared with the prior art, the ginkgo leaf raw material conveying equipment has the advantages that ginkgo leaves can be dried in the transportation process, the occupied area of the equipment can be reduced, the production time of the ginkgo leaves can be shortened, medicinal components of the ginkgo leaves can be reserved as much as possible, and the production efficiency of the ginkgo leaves is improved. And the ginkgo leaf can meet the quality standard of medicine production.

Description

Technical Field

[0001] The present invention belongs to the technical field of ginkgo leaf preparation equipment, and specifically relates to a ginkgo leaf raw material conveying device. Background Art

[0002] In the industrial production of ginkgo leaf extract, varieties with high flavonoid and lactone contents such as plum-core ginkgo and fingered citron ginkgo are the main raw materials for producing ginkgo leaf extract. Drying and conveying, as the key links in the pre-treatment of extraction, directly affect the quality of ginkgo leaf raw materials in terms of process advantages and disadvantages. At present, in the traditional conveying methods of screw conveyors and vibrating screens, due to problems such as poor sealing and long exposure time of materials, the dried ginkgo leaves are extremely prone to oxidation reactions.

[0003] The cell structure of the dried ginkgo leaves is damaged, and active substances such as internal polyphenol oxidase are exposed. During the traditional conveying process, they come into full contact with air and will cause violent oxidation in a short time. The rapid browning on the surface is only an intuitive appearance, and the deeper harm lies in the serious damage of the internal active ingredients. Research shows that for ginkgo leaves with excessive oxidation, the loss rate of flavonoid glycosides can reach 30% - 50%, and the loss rate of terpene lactones is also about 20% - 35%. The large loss of these medicinal ingredients not only greatly reduces the medicinal value of ginkgo leaf extract, making it difficult to meet the quality standards of drug production, directly affects the market price, and reduces the market competitiveness of products.

[0004] In addition, the existing conveying equipment for ginkgo leaf raw materials is mainly limited to the conveying function and does not further integrate the functions of other production links. This single-function design results in a relatively large floor area of the equipment, so the layout of the production line becomes more complex. Due to the large floor area and single function of the equipment, operators have to operate between different equipment in a relatively large space, increasing the complexity of production and logistics, and thus prolonging the time of the entire production process.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a ginkgo leaf raw material conveying device that can solve the technical problems raised in the above background art.

[0007] To achieve the above purpose, the technical solution provided by a specific embodiment of the present invention is as follows: A ginkgo leaf raw material conveying device comprises a first transport mechanism, a detection mechanism, and an extrusion mechanism, comprising an outer cylinder and an inner cylinder, wherein the inner cylinder is rotatably connected to the outer cylinder, the inner cylinder is provided with a spiral sheet, a plurality of evenly distributed first drying units are fixedly connected to the inner wall of the outer cylinder, a plurality of second drying units matching the first drying units are fixedly connected to the outer wall of the inner cylinder, a plurality of second ribs are fixedly connected to the inner wall of the outer cylinder, a first rib matching the second rib is fixedly connected to the outer wall of the inner cylinder, the first rib and the second rib cooperate to realize kneading of the ginkgo leaves, the detection mechanism is used to detect the drying state of the ginkgo leaves in the first transport mechanism, and control the temperature changes of the plurality of first drying units and the second drying units, the extrusion mechanism is installed at one end of the outer cylinder close to the second rib, and the extrusion mechanism is used to extrude the kneaded ginkgo leaves into strips.

[0008] In one or more embodiments of the present invention, a first material storage mechanism is provided on the first transport mechanism, a second material storage mechanism is installed on the upper end of the first material storage mechanism, a first valve is installed between the first material storage mechanism and the second material storage mechanism, a second valve is installed at the inlet end of the second material storage mechanism, a fourth valve is installed at the end of the extrusion mechanism away from the first transport mechanism, and a vacuum mechanism is installed on the first transport mechanism.

[0009] In one or more embodiments of the present invention, the vacuum mechanism includes a vacuum pump, the inlet end of the vacuum pump is fixedly connected to a fourth gas delivery pipe, a fifth gas delivery pipe is installed between the fourth gas delivery pipe and the second material storage mechanism, a sixth valve is installed on the fourth gas delivery pipe, and a seventh valve is installed on the fifth gas delivery pipe.

[0010] In one or more embodiments of the present invention, the first material storage mechanism includes a first material storage box, the lower end of the first material storage box is communicated with the outer cylinder, a pair of blocks are fixedly connected to the inside of the first material storage box, the pair of blocks are respectively located at the outlet ends of the first material storage box, a feeding roller is rotatably connected between the pair of blocks, a plurality of hole-opening teeth for making tapered holes for ginkgo leaves are fixedly connected to the feeding roller, and the block is provided with grooves matching the hole-opening teeth.

[0011] In one or more embodiments of the present invention, a first gear is fixedly connected to one end of the unloading roller, a second gear is installed between a pair of the first gears, and a second motor for driving the second gear is fixedly connected to the first storage box.

[0012] In one or more embodiments of the present invention, a first cavity is formed in the first storage box. One end of the extrusion mechanism away from the first transportation mechanism is fixedly connected to a second cylinder body. A second cavity is formed in the second cylinder body. An air inlet is formed in the inner wall of the second cylinder body. A heat transfer mechanism is installed between the second cylinder body and the first storage box. The heat transfer mechanism is used to cool the ginkgo leaf strips in the second cylinder body and transfer the heat to the first cavity to preheat the ginkgo leaves in the first storage box.

[0013] In one or more embodiments of the present invention, the heat transfer mechanism includes an air pump. The input end of the air pump is fixedly connected to a first gas delivery pipe that matches the air inlet. The output end of the air pump is fixedly connected to a second gas delivery pipe that matches the first cavity.

[0014] In one or more embodiments of the present invention, a plurality of grooves are formed in the outer cylinder. A hole punching mechanism that matches the grooves is installed on the outer cylinder. The hole punching mechanism is used to punch through holes in the ginkgo leaves.

[0015] In one or more embodiments of the present invention, the hole punching mechanism includes a mounting plate. The mounting plate is slidably connected in the storage groove. A plurality of elastic needles are fixedly connected to the mounting plate. An electromagnet is fixedly connected to the end surface of the storage groove away from the mounting plate. A magnet block that matches the electromagnet is fixedly connected to the mounting plate. A sleeve is installed between the magnet block and the electromagnet. A connecting rod is slidably connected in the sleeve. A spring is installed between the connecting rod and the inner bottom wall of the sleeve.

[0016] In one or more embodiments of the present invention, a nitrogen delivery pipe is installed on the outer cylinder. A nitrogen delivery mechanism is installed at the end of the nitrogen delivery pipe away from the outer cylinder. The nitrogen delivery mechanism is used to deliver nitrogen into the outer cylinder to ensure that the air pressure in the outer cylinder is consistent with the external air pressure.

[0017] Compared with the prior art, a ginkgo leaf raw material conveying device of the present invention can dry the ginkgo leaves during the transportation process. It can not only reduce the floor area of the device, but also shorten the production time of the ginkgo leaves. And it can retain as much as possible the medicinal components of the ginkgo leaves, enabling the ginkgo leaves to meet the quality standards for drug production, which is conducive to increasing the market price and enhancing the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Structural schematic diagram of a ginkgo leaf raw material conveying device in an embodiment of the present invention; Figure 2 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 1 ; Figure 3 is Figure 2 Structural schematic diagram at position A in Figure 4 is Figure 2 Structural schematic diagram at position B in Figure 5 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 2 ; Figure 6 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 3 ; Figure 7 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 4 ; Figure 8 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 5 ; Figure 9 is Figure 8 Structural schematic diagram at position C in Figure 10 Partial cross-section of a ginkgo leaf raw material conveying device in an embodiment of the present invention Figure 6 ; Figure 11 is Figure 10 Structural schematic diagram at position D in

[0020] Main reference numeral description: 1. First transportation mechanism; 2. Outer cylinder; 201. Storage groove; 3. Inner cylinder; 4. First motor; 5. First drying unit; 6. Second drying unit; 7. Spiral fin; 8. First rib; 9. Second rib; 10. Hole punching mechanism; 11. Mounting plate; 12. Elastic needle; 1201. Arc needle tip; 13. Magnet block; 14. Electromagnetic block; 15. Sleeve; 16. Connecting rod; 17. Spring; 18. First storage mechanism; 19. First storage box; 1901. First cavity; 20. Stop block; 2001. Groove; 21. Feeding roller; 22. Hole opening teeth; 23. First gear; 24. Second motor; 25. Second gear; 26. Second storage mechanism; 27. Second storage box; 28. First valve; 29. Second valve; 30. Mounting frame; 31. Extrusion mechanism; 32. First cylinder body; 33. Progressive screw; 34. Third motor; 35. First pipeline; 36. Third valve; 37. Fourth valve; 38. Second cylinder body; 3801. Second cavity; 3802. Air inlet; 39. Heat transfer mechanism; 40. Air pump; 41. First gas delivery pipe; 42. Second gas delivery pipe; 43. Third gas delivery pipe; 44. Fifth valve; 45. Vacuum mechanism; 46. Vacuum pump; 47. Fourth gas delivery pipe; 48. Fifth gas delivery pipe; 49. Sixth valve; 50. Seventh valve; 51. Nitrogen delivery pipe. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 2 shown, a ginkgo leaf raw material conveying device in an embodiment of the present invention includes a first transportation mechanism 1. The first transportation mechanism 1 is used to convey ginkgo leaves and can perform treatments such as drying and kneading on the ginkgo leaves. An extrusion mechanism 31 is installed at the rear end of the first transportation mechanism 1. The extrusion mechanism 31 can extrude the kneaded ginkgo leaves into strips, greatly saving the space occupied by the storage of ginkgo leaves. And the strip-shaped ginkgo leaves are more convenient to take, and the corresponding amount can be accurately taken according to needs, unlike loose ginkgo leaves that are easy to scatter, which is convenient for subsequent processing and use. As Figures 5 to 7As shown, the first transportation mechanism 1 includes an outer cylinder 2 and an inner cylinder 3. A spiral blade 7 is fixedly connected to the inner cylinder 3. The inner cylinder 3 is rotatably connected to the inside of the outer cylinder 2. One end of the outer cylinder 2 is fixedly connected with a first motor 4 for driving the inner cylinder 3 to rotate. A channel is formed between the inner wall of the outer cylinder 2 and the outer wall of the inner cylinder 3. Ginkgo leaves enter the channel. During the rotation of the inner cylinder 3, in cooperation with the spiral blade 7, the ginkgo leaves can be made to approach one end of the extrusion mechanism 31.

[0023] As Figures 5 to 7 shown, a detection mechanism (not shown in the figure) is also installed inside the outer cylinder 2. The detection mechanism is used to detect the drying state of the ginkgo leaves in the channel. The detection mechanism is generally infrared induction detection, and the drying state of the ginkgo leaves in the channel is detected through infrared induction detection. Among them, a plurality of first drying units 5 are evenly distributed on the inner wall of the outer cylinder 2, and a plurality of second drying units 6 are evenly distributed on the outer wall of the inner cylinder 3. The first drying units 5 and the second drying units 6 are generally electric heating drying sheets. According to different powers, the drying effects are also different. The detection mechanism can adjust the drying powers of the first drying units 5 and the second drying units 6 according to the drying state of the ginkgo leaves, so that the ginkgo leaves in the channel can be dried evenly.

[0024] Since the thicknesses of ginkgo leaves are different and the powers required for their drying are also different, therefore, through the cooperation of the detection mechanism and the first drying units 5 and the second drying units 6, the ginkgo leaves can be dried in a targeted manner. For example, when the detection mechanism detects that one or a batch of ginkgo leaves are relatively wet after drying, the powers of the current first drying units 5 and the second drying units 6 can be increased, or the powers of the first drying units 5 and the second drying units 6 that the relatively wet ginkgo leaves are about to pass through can be increased. In this way, the ginkgo leaves can be dried differentially, ensuring the final dryness of the ginkgo leaves.

[0025] Moreover, by setting the first drying units 5 and the second drying units 6, the ginkgo leaves can also be dried more evenly. Since the channel is circular, some ginkgo leaves are in contact with the inner wall of the outer cylinder 2, and some ginkgo leaves are in contact with the outer wall of the inner cylinder 3. In this way, the drying degrees of the ginkgo leaves are surely different. By setting a plurality of first drying units 5 and second drying units 6, according to the direction of the ginkgo leaves in the channel, different powers can be set for the plurality of first drying units 5 and second drying units 6 to achieve different drying effects, so that the ginkgo leaves can be dried evenly, facilitating subsequent use.

[0026] In order to reduce the power consumed by the ginkgo leaves during the drying process, as Figures 5 to 9As shown, a storage groove 201 is provided inside the outer cylinder 2, and a hole-punching mechanism 10 matching the storage groove 201 is installed on the outer cylinder 2. The hole-punching mechanism 10 punches holes in the ginkgo leaves in the channel by reciprocally stabbing into the channel. Since the leaf structure of ginkgo leaves is relatively thick, there is a waxy layer on the surface, the stomata are densely distributed and some may be closed, punching holes in the ginkgo leaves can directly damage the epidermal structure of the leaves, enabling the moisture inside the leaves to quickly evaporate through the holes and avoiding water retention caused by the obstruction of the epidermis.

[0027] In addition, by punching holes in the ginkgo leaves with the hole-punching mechanism 10, it is also possible to ensure that the active ingredients in the ginkgo leaves, such as flavonoids, terpene lactones, etc., are present in the mesophyll cells and vascular bundles as much as possible. Punching holes can slightly damage the cell structure, causing some cell walls to rupture, reducing the loss of ingredients caused by the rupture of cells due to water expansion during drying, and avoiding the natural disintegration of cells during slow drying.

[0028] As Figures 5 to 9 shown, the hole-punching mechanism 10 includes a mounting plate 11. The mounting plate 11 is in the shape of a long strip matching the storage groove 201. A plurality of evenly distributed elastic needles 12 are fixedly connected to one end surface of the mounting plate 11 close to the channel. An arc-shaped needle tip 1201 is provided at one end of the elastic needle 12 away from the mounting plate 11. The arc-shaped needle tip 1201 can avoid the situation of scratching the ginkgo leaves after punching holes in them. An electromagnet 14 is fixedly connected to one end of the storage groove 201 away from the mounting plate 11, and a magnet block 13 matching the electromagnet 14 is fixedly connected to the mounting plate 11. Energizing the electromagnet 14 can make the magnet block 13 and the electromagnet 14 repel each other, that is, the magnet block 13 drives the mounting plate 11 to move towards the end away from the electromagnet 14, causing the elastic needles 12 to protrude from the outer cylinder 2, and one end of the elastic needles 12 enters the channel to punch holes in the ginkgo leaves.

[0029] As Figures 5 to 9 shown, a sleeve 15 and a connecting rod 16 are also provided between the magnet block 13 and the electromagnet 14. The connecting rod 16 is slidably connected inside the sleeve 15. One end of the sleeve 15 is fixedly connected to the magnet block 13, one end of the connecting rod 16 is fixedly connected to the electromagnet 14, and a spring 17 is fixedly connected between the connecting rod 16 and the inner bottom wall of the sleeve 15. In this embodiment, the spring 17 is a tension spring. When the power supply to the electromagnet 14 is stopped, the spring 17 can pull the connecting rod 16 to be received into the sleeve 15, forcing the magnet block 13 to approach the electromagnet 14, and the elastic needles 12 can also be received and completely received in the elastic needles 12.

[0030] When the punching mechanism 10 is in use, the electromagnetic block 14 is used in an on-off cycle. When the electromagnetic block 14 is turned on, the elastic needle 12 can instantly penetrate into the channel. When the electromagnetic block 14 is turned off, the sleeve 15, the connecting rod 16, and the spring 17 cooperate to enable the elastic needle 12 to be instantly received in the outer cylinder 2. Even if the ginkgo leaf rotates in the channel, it is not easy to scratch the ginkgo leaf, and the elastic needle 12 is elastic. When the elastic needle 12 deflects, it will not tear the ginkgo leaf.

[0031] As Figures 10 to 11 shown, the extrusion mechanism 31 includes a first cylinder body 32. The first cylinder body 32 is fixedly connected to the outer cylinder 2, and the first cylinder body 32 is communicated with the outer cylinder 2. Through the cooperation of the inner cylinder 3 and the spiral piece 7, the dried ginkgo leaves can be conveyed into the first cylinder body 32. A progressive screw 33 is rotatably connected in the first cylinder body 32. A third motor 34 for driving the progressive screw 33 to rotate is installed on the first cylinder body 32. The ginkgo leaves enter the first cylinder body 32 and the progressive screw 33 and are gradually extruded to form strips.

[0032] Specifically, during drying, 10% - 15% of the moisture of the ginkgo leaves needs to be retained. In this state, the ginkgo leaves can not only provide sufficient flexibility to assist in forming, but also largely avoid the growth of microorganisms, that is, it can facilitate the extrusion and forming of the ginkgo leaves in the extrusion mechanism 31.

[0033] Since the spiral gap of the extrusion mechanism 31 is gradually reduced, the ginkgo leaves are gradually extruded and formed, making the outer structure of the ginkgo leaf strip denser, reducing the porosity, and forming a physical barrier. Even without affecting the medicinal value of the ginkgo leaf strip, an antioxidant can be sprayed on the surface of the ginkgo leaf strip to extend the storage time of the ginkgo leaves.

[0034] As Figure 10 shown, a first pipeline 35 is installed on the first cylinder body 32, and a third valve 36 is installed on the first pipeline 35. The first pipeline 35 is used as a reserved port. According to the preparation requirements of the ginkgo leaves, starch, plant gum, etc. can be added to the extruded ginkgo leaves in strips to achieve auxiliary forming.

[0035] To make it more convenient for the ginkgo leaves to be extruded and formed in the extrusion mechanism 31, as Figures 5 to 7As shown in the figure, one end of the inner cylinder 3 close to the extrusion mechanism 31 is fixedly connected with a plurality of first ribs 8, and the inner wall of the outer cylinder 2 is fixedly connected with a plurality of second ribs 9 that match the first ribs 8. The first ribs 8 and the second ribs 9 can knead the ginkgo leaves and reduce the advancing speed of the ginkgo leaves, so that when the ginkgo leaves pass through the first ribs 8 and the second ribs 9, they can be kneaded sufficiently. The kneaded ginkgo leaves enter the extrusion mechanism 31 for extrusion molding. Through kneading and extrusion, some antioxidant components in the ginkgo leaves can be better released and covered on the leaf surface, reducing the contact area between the leaves and the air, reducing the oxidation rate, helping to maintain the active ingredients and quality of the ginkgo leaves, and preventing them from deteriorating prematurely.

[0036] In order to avoid the oxidation of ginkgo leaves during the drying process, as Figures 1 to 11 shown, a first storage mechanism 18 and a second storage mechanism 26 are also installed at the inlet end of the first transportation mechanism 1. A first valve 28 is installed between the first storage mechanism 18 and the second storage mechanism 26, and a second valve 29 is installed at the inlet end of the second storage mechanism 26. The second storage mechanism 26 and the outer cylinder 2 are both connected to a vacuum mechanism 45. A fourth valve 37 is fixedly connected to one end of the extrusion mechanism 31 away from the outer cylinder 2. Through the cooperation of the vacuum mechanism 45, the first storage mechanism 18, the second storage mechanism 26, and the fourth valve 37, it can be ensured that the ginkgo leaves are in a vacuum state during the drying process, reducing the oxidation of the ginkgo leaves during the drying process.

[0037] As Figures 1 to 4 shown, the vacuum mechanism 45 includes a vacuum pump 46. The input end of the vacuum pump 46 is fixedly connected with a fourth gas delivery pipe 47. One end of the fourth gas delivery pipe 47 away from the vacuum pump 46 communicates with the outer cylinder 2. A fifth gas delivery pipe 48 is installed between the fourth gas delivery pipe 47 and the second storage mechanism 26. A seventh valve 50 is installed on the fifth gas delivery pipe 48, and a sixth valve 49 is installed on the fourth gas delivery pipe 47. When it is necessary to evacuate the channel, the fourth valve 37 and the first valve 28 are both in the closed state, and the channel is evacuated by the vacuum mechanism 45. When feeding is required, first transport the ginkgo leaves into the second storage mechanism 26, then close the second valve 29, evacuate the second storage mechanism 26 to vacuum, and then open the first valve 28 to allow the ginkgo leaf material to enter the first storage mechanism 18, so as to ensure that the channel is continuously in a vacuum state.

[0038] Similarly, when discharging the ginkgo leaves, two valves can also be set, and then through the cooperation of the two valves and the channel, the discharging of the ginkgo leaves can be realized to avoid breaking the vacuum of the outer cylinder 2 during the discharging process.

[0039] In this embodiment, as Figures 1 to 11As shown, a nitrogen delivery pipe 51 is installed on the outer cylinder 2. One end of the nitrogen delivery pipe 51 away from the outer cylinder 2 is installed with a nitrogen delivery mechanism, which is used to deliver nitrogen into the outer cylinder 2 to ensure that the air pressure inside the outer cylinder 2 is consistent with the external air pressure. When discharging materials, only by opening the fourth valve 37, the nitrogen and the ginkgo leaf strips are discharged together. One end of the ginkgo leaf strips passes through the storage bag during discharging, so as to store the ginkgo leaves and nitrogen, and the ginkgo leaf strips are stored in the storage bag with nitrogen, ensuring that the ginkgo leaves are not oxidized during long-term storage.

[0040] As Figures 1 to 4 shown, both the second storage mechanism 26 and the first storage mechanism 18 are installed on the upper end of the first transportation mechanism 1 through the mounting frame 30. Among them, the second storage mechanism 26 includes a second storage box 27. A second valve 29 is installed at the inlet end of the second storage box 27. A first valve 28 is installed at the outlet end of the second storage box 27. The fifth gas delivery pipe 48 communicates with the second storage box 27.

[0041] As Figures 1 to 4 shown, the first storage mechanism 18 includes a first storage box 19. The inlet end of the first storage box 19 is fixedly connected to the first valve 28, and the outlet end of the first storage box 19 communicates with the outer cylinder 2, that is, the ginkgo leaves in the first storage box 19 finally fall into the channel. A pair of stoppers 20 are fixedly connected to the inner wall of the inlet end of the first storage box 19. The pair of stoppers 20 are oppositely arranged on the inner wall of the outlet end of the first storage box 19. A pair of blanking rollers 21 are rotatably connected between the pair of stoppers 20. A plurality of perforated teeth 22 are fixedly connected to the blanking rollers 21. Grooves 2001 matching the perforated teeth 22 are opened on the stoppers 20.

[0042] When the blanking rollers 21 do not rotate, the ginkgo leaves will not fall due to gravity. When the blanking rollers 21 rotate, the perforated teeth 22 can carry the ginkgo leaves downward, and the perforated teeth 22 can punch holes in the ginkgo leaves. The blanking rollers 21 are short conical, and it is not easy to tear the ginkgo leaves. As much as possible, the integrity of the ginkgo leaves is ensured. The cooperation of the blanking rollers 21 and the perforated teeth 22 can punch holes in the ginkgo leaves before drying, and can improve the drying efficiency during drying.

[0043] Specifically, as Figures 1 to 3 shown, a first gear 23 is fixedly connected to the blanking roller 21. A second gear 25 is rotatably connected between the pair of first gears 23. A second motor 24 matching the second gear 25 is fixedly connected to the first storage box 19. The second motor 24 drives the blanking roller 21 to rotate, and one of the two blanking rollers 21 rotates counterclockwise, and the other blanking roller 21 rotates clockwise, that is, the two blanking rollers 21 rotate relatively, realizing the uniform feeding and punching of the ginkgo leaves.

[0044] In addition, when the ginkgo leaf strips are discharged, the ginkgo leaf strips still have a certain amount of heat. It is necessary to completely cool the ginkgo leaf strips before they can be easily stored. As Figure 1 、 Figure 3 Combined with Figure 11 As shown, one end of the fourth valve 37 away from the first cylinder 32 is fixedly connected to a second cylinder 38. A second cavity 3801 is provided in the second cylinder 38. An air inlet 3802 matching the second cavity 3801 is provided on the second cylinder 38. A first cavity 1901 is provided on the first storage box 19. A heat transfer mechanism 39 is installed between the first storage box 19 and the second cylinder 38. The ginkgo leaves are cooled by the heat transfer mechanism 39. The heat transfer mechanism 39 absorbs the temperature of the ginkgo leaves, and transfers this heat to the first cavity 1901. The hot air exchanges heat with the first cavity 1901 to preheat the ginkgo leaves in the first storage box 19. While being conducive to energy conservation and environmental protection, it can also improve the efficiency of ginkgo leaf drying and transportation.

[0045] As Figure 10 shown, the heat transfer mechanism 39 includes an air pump 40. The input end of the air pump 40 is fixedly connected to a first gas delivery pipe 41 matching the second cavity 3801. The output end of the air pump 40 is fixedly connected to a second gas delivery pipe 42 matching the first cavity 1901. The air pump 40 transfers the residual heat of the ginkgo leaves to the first cavity 1901 through the cooperation of the first gas delivery pipe 41 and the second gas delivery pipe 42.

[0046] As Figure 3 shown, a fifth valve 44 matching the first cavity 1901 is installed on the first storage box 19. A third gas delivery pipe 43 is installed on the fifth valve 44. The third gas delivery pipe 43 is opened and closed according to the heat of the hot air in the first cavity 1901 to maximize the utilization of the residual heat of the hot air.

[0047] When the ginkgo leaf raw material conveying equipment is in use, first, the processed ginkgo leaves need to be conveyed to the second storage mechanism 26, and the second storage mechanism 26 conveys the ginkgo leaves into the first storage mechanism 18. Then close the first valve 28 and the fourth valve 37, and start the vacuum mechanism 45 to make the first storage mechanism 18 and the channel in a vacuum state. The ginkgo leaves in the first storage mechanism 18 enter the channel, and the inner cylinder 3 will rotate and move forward with the ginkgo leaves. During the movement of the ginkgo leaves, they are dried by the cooperation of the first drying unit 5 and the second drying unit 6. When the ginkgo leaves pass through the hole punching mechanism 10, the hole punching mechanism 10 will punch the ginkgo leaves. The holes on the ginkgo leaves can improve the drying efficiency of the ginkgo leaves. After passing through the hole punching mechanism 10, the ginkgo leaves will be dried for a period of time, and then the ginkgo leaves will come into contact with the first rib 8 and the second rib 9. During this process, the ginkgo leaves are kneaded to make the ginkgo leaves soft, and part of the juice adheres to the surface of the ginkgo leaves.

[0048] The ginkgo leaves finally enter the extrusion mechanism 31, and the extrusion mechanism 31 extrudes the kneaded ginkgo leaves so that the discharged ginkgo leaves are strip-shaped. Nitrogen is discharged together with the ginkgo leaves, and then the ginkgo leaf strips and nitrogen are packaged together by using packaging to avoid the influence of ginkgo leaf oxidation on the medicinal properties of ginkgo leaves.

[0049] In another embodiment, in order to achieve continuous production, as Figures 10 to 11 shown, the end of the second cylinder 38 far from the fourth valve 37 is also fixedly connected with an eighth valve (not shown in the figure). When the ginkgo leaves are discharged from the fourth valve 37, the eighth valve is in the closed state. When the ginkgo leaves completely enter the second cylinder 38, the fourth valve 37 is closed and the eighth valve is opened, and the ginkgo leaf strips are discharged from the eighth valve. With such a setting, it is possible to avoid the situation of breaking the vacuum in the outer cylinder 2 due to discharging. Of course, a conveying mechanism and a cutting mechanism should also be provided in the second cylinder 38 to realize the cutting and conveying of the ginkgo leaf strips in the second cylinder 38.

[0050] In the present invention, the ginkgo leaves are dried during transportation, and the drying and transportation are integrated, which greatly reduces the floor area of the ginkgo leaf preparation equipment. Moreover, during transportation, the ginkgo leaves can be efficiently dried, which is beneficial to improving the efficiency of ginkgo leaf preparation. Since the raw material conveying equipment of the present invention can convey and dry the ginkgo leaves in a vacuum state, the air pressure decreases in the vacuum environment, and the boiling point of water drops significantly, so it can be quickly dried at a low temperature, avoiding high temperature and damage to heat-sensitive active ingredients such as flavonoids and terpene lactones in the ginkgo leaves, maximizing the retention of medicinal ingredients, and at the same time reducing the energy consumption of drying the ginkgo leaves. Drying is realized during transportation, improving the efficiency of ginkgo leaf preparation. The oxygen content in the vacuum environment is extremely low, almost in an anaerobic state, which can inhibit the oxidation reaction of polyphenols in the ginkgo leaves and avoid the degradation of active ingredients. In the vacuum state, the moisture inside and outside the leaves is more likely to migrate to the surface under the action of the pressure difference, and even the deep moisture inside the leaves can be quickly discharged, avoiding the phenomenon of "dry outside and wet inside" and realizing overall uniform drying, meeting the high-standard drying requirements for medicines, health products, etc.

[0051] During the drying process of the present invention, the ginkgo leaves can be perforated. When perforating, the mesophyll cells and vascular bundles are slightly damaged, causing some cells to rupture, and the leaf tissue becomes more porous after vacuum drying. The vacuum environment itself promotes water evaporation by reducing air pressure, and perforating enhances this process from the physical structure. The combination of the two can achieve "dual internal and external drainage", ensuring that even when the leaves are stacked or piled up, the internal moisture can quickly drain through the holes, avoiding the risk of corruption caused by local moisture.

[0052] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0053] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ginkgo leaf raw material conveying device, characterized in that, include: The first transport mechanism comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is rotatably connected in the outer cylinder, a spiral sheet is arranged on the inner cylinder, a plurality of evenly distributed first drying units are fixedly connected to the inner wall of the outer cylinder, and a plurality of second drying units matching the first drying units are fixedly connected to the outer wall of the inner cylinder; A plurality of second ribs are fixedly connected to the inner wall of the outer cylinder, and a first rib matching the second ribs is fixedly connected to the outer wall of the inner cylinder, and the first ribs and the second ribs cooperate to achieve kneading of the ginkgo leaves; A detection mechanism, the detection mechanism is used to detect the drying state of the ginkgo leaves in the first transportation mechanism and control the temperature change of the plurality of first drying units and the second drying units; The squeezing mechanism is installed at one end of the outer cylinder close to the second rib, and is used for squeezing the kneaded ginkgo leaves into strips.

2. The ginkgo leaf raw material conveying device according to claim 1, wherein A first material storage mechanism is provided on the first transport mechanism, a second material storage mechanism is installed on the upper end of the first material storage mechanism, a first valve is installed between the first material storage mechanism and the second material storage mechanism, and a second valve is installed at the inlet end of the second material storage mechanism; A fourth valve is installed at one end of the extrusion mechanism away from the first transport mechanism, and a vacuum mechanism is installed on the first transport mechanism.

3. The ginkgo leaf raw material conveying device according to claim 2, wherein, The vacuum mechanism includes a vacuum pump, the inlet end of the vacuum pump is fixedly connected to a fourth gas delivery pipe, a fifth gas delivery pipe is installed between the fourth gas delivery pipe and the second material storage mechanism, a sixth valve is installed on the fourth gas delivery pipe, and a seventh valve is installed on the fifth gas delivery pipe.

4. A ginkgo leaf raw material conveying device according to claim 2 or 3, characterized in that The first material storage mechanism includes a first material storage box, the lower end of the first material storage box is communicated with the outer cylinder, a pair of blocks are fixedly connected to the inside of the first material storage box, the pair of blocks are respectively located at the outlet ends of the first material storage box, a feeding roller is rotatably connected between the pair of blocks, a plurality of hole-opening teeth for making tapered holes for ginkgo leaves are fixedly connected to the feeding roller, and a groove matching the hole-opening teeth is formed on the block.

5. The ginkgo leaf raw material conveying device according to claim 4, characterized in that, One end of the unloading roller is fixedly connected to a first gear, a second gear is installed between a pair of the first gears, and a second motor for driving the second gear is fixedly connected to the first storage box.

6. The ginkgo leaf raw material conveying device according to claim 5, characterized in that, A first cavity is provided on the first storage box, and a second cylinder is fixedly connected to one end of the extrusion mechanism away from the first transport mechanism. A second cavity is provided on the second cylinder, and an air inlet is provided on the inner wall of the second cylinder. A heat transport mechanism is installed between the second cylinder and the first storage box, and the heat transport mechanism is used to cool the ginkgo leaf strips in the second cylinder and transport the heat to the first cavity to preheat the ginkgo leaves in the first storage box.

7. The ginkgo leaf raw material conveying device according to claim 6, characterized in that, The heat transport mechanism comprises an air pump, an input end of the air pump is fixedly connected with a first gas transport pipe matching with the air inlet, and an output end of the air pump is fixedly connected with a second gas transport pipe matching with the first cavity.

8. A ginkgo leaf raw material conveying device according to claim 1, characterized in that, The outer cylinder is provided with a plurality of grooves, and a hole punching mechanism matching the grooves is installed on the outer cylinder, and the hole punching mechanism is used to open through holes on the ginkgo leaves.

9. The ginkgo leaf raw material conveying device according to claim 8, characterized in that, The piercing mechanism comprises a mounting plate, the mounting plate is slidably connected in the receiving slot, and a plurality of elastic pins are fixedly connected to the mounting plate; An electromagnetic block is fixedly connected to one end surface of the storage slot away from the mounting plate, and a magnet block matching the electromagnetic block is fixedly connected to the mounting plate; A sleeve is installed between the magnet block and the electromagnetic block, a connecting rod is slidably connected in the sleeve, and a spring is installed between the connecting rod and the inner bottom wall of the sleeve.

10. A ginkgo leaf raw material conveying device according to any one of claims 1 to 3, characterized in that, A nitrogen delivery pipe is installed on the outer cylinder, and a nitrogen delivery mechanism is installed at one end of the nitrogen delivery pipe away from the outer cylinder. The nitrogen delivery mechanism is used to deliver nitrogen into the outer cylinder to ensure that the air pressure in the outer cylinder is consistent with the external air pressure.

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