Illicium verum drying equipment and method for increasing content of illicium verum oil

Abstract

The invention discloses illicium verum drying equipment and method for increasing the illicium verum oil content, and relates to the technical field of illicium verum drying. The illicium verum drying equipment comprises a drying box, and a plurality of illicium verum storage drying frames are arranged in the drying box; the octagonal storage drying frame comprises a trolley body, a plurality of drying disc fixing frames are sequentially and fixedly arranged on the inner side of the trolley body from top to bottom at equal intervals, triangular plates are welded to the four corners of the inner side of each drying disc fixing frame, and positioning pieces are welded to the middle positions of the triangular plates. According to the invention, under the driving of the driving mechanism, the pull-down sheet pulls the T-shaped rod to slide downwards, the driving disc simultaneously inclines downwards the inner side of the fan-shaped net disc which is designed into four equal parts through the connecting fasteners, and at the moment, octagonal parts on the outer side of the fan-shaped net disc surges towards the inner side; after the driving mechanism rotates for a period, the driving mechanism resets under the ejection of the compression spring, the inner side of the fan-shaped net disc swings upwards at the same time, and at the moment, the octagon located on the inner side of the fan-shaped net disc surges towards the outer side; therefore, the star anise can shake in the drying process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drying star anise, and in particular to a star anise drying device and method for improving star anise oil content. BACKGROUND

[0002] The quality of star anise drying directly affects the oil yield, and high-quality drying can maximize the retention of volatile oil (core anise oil) in star anise. Poor drying can cause oil loss and deterioration, ultimately reducing the oil yield. Star anise oil is volatile and sensitive to high temperatures. High-quality drying (low temperature, ventilation, and slow drying) can prevent the rapid evaporation of oil during drying, reduce the decomposition of oil due to high temperature, and keep the oil firmly locked inside the fruit. Fresh star anise contains about 60%-70% water. If the drying is not complete, the residual water will dilute the oil. During subsequent distillation and extraction, water will increase energy consumption and prolong extraction time, indirectly reducing the oil yield per unit weight of star anise. Star anise dried to the right amount (water content ≤12%) has a higher oil concentration and is easier to separate during extraction.

[0003] Chinese patent application No. 201821366709.3 provides a heat pump drying device for quickly drying star anise, which includes a stainless steel shell connected with a galvanized heat preservation liner inside. The left side of the galvanized heat preservation liner is connected with a control panel, and the right side of the galvanized heat preservation liner is connected with an inner liner sealing door through a rotating shaft. The outer side of the inner liner sealing door is connected with an anti-scald handle, and the right side of the anti-scald handle is provided with a transparent observation window. The outer side of the transparent observation window is connected with an inner liner sealing door around.

[0004] The star anise drying device in the above patent is a small drying equipment, which is not convenient for drying a large amount of star anise. Moreover, during the drying process, the star anise is always in a static drying state. The upper layer of star anise dries too quickly, which can cause the fruit petals to crack and the color to be too light. The lower layer of star anise is not dried enough, which can cause the color to be dark and sticky, some fruit petals to have spots due to mildew, and the loss of aroma substances (anise oil) due to local overheating. In addition, the high humidity environment can cause slight oxidation or mildew, which can make the star anise aroma weak and even mixed with burnt and moldy smells. SUMMARY

[0005] The present application aims to provide a star anise drying device and method for improving star anise oil content, which uses dynamic drying to make the star anise in a shaking state during the drying process, which can break the "static stratification" of the star anise on the drying rack, prevent the accumulation of heat in the lower layer of star anise due to insufficient ventilation, and reduce the accelerated volatilization and chemical decomposition of anise oil due to high temperature. The technical problems raised in the background are solved.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The application discloses anilide drying equipment with improved star anise oil content, which comprises a drying box, and a plurality of star anise storage and drying racks are arranged in the drying box; the star anise storage and drying rack comprises a trolley body, a plurality of drying disc fixing frames are fixed at the inner side of the trolley body from top to bottom at equal intervals, a triangular plate is welded at each of the four corners of the inner side of each drying disc fixing frame, and a positioning sheet is welded at the middle position of the triangular plate.

[0008] A drying disc is arranged at the middle position of the drying disc fixing frame, the drying disc is composed of four equal parts of fan-shaped net discs, the inner side of each net disc is fixedly connected with a driving disc through a connecting fastener, and the outer side is movably connected with the positioning sheet through a rotating shaft.

[0009] A plurality of driving discs are arranged on the T-shaped rod at equal intervals; the top of the T-shaped rod penetrates into the upper portion of the trolley body and is slidably connected with a guide sleeve; the guide sleeve is embedded in the upper portion of the trolley body; a compression spring is further sleeved on the upper end of the T-shaped rod, and the compression spring is located above the guide sleeve.

[0010] A pull-down sheet is welded at the bottom of the T-shaped rod, and the pull-down sheet is connected with a driving mechanism.

[0011] As a further technical scheme of the application, two lifting pulley fixing seats arranged on the two sides of the T-shaped rod are further fixed on the top of the trolley body, one lifting pulley is mounted on each lifting pulley fixing seat; the lifting pulley is slidably connected with a hanging rail; and the hanging rail is fixed on the top side of the drying box through a counterbore bolt.

[0012] As a further technical scheme of the application, two roller guide frames are fixed on the bottom side of the drying box; and the upper surface of the roller in the roller guide frame is in contact with the bottom of the trolley body.

[0013] As a further technical scheme of the application, a drying mechanism is fixed on one side of the drying box; and a base is fixed on the two sides of the bottom of the drying box.

[0014] As a further technical scheme of the application, a gap is left between every two adjacent fan-shaped net discs in the four equal parts of fan-shaped net discs, so that the positioning sheet can extend into the gap.

[0015] As a further technical scheme of the application, the drying mechanism comprises a machine shell body fixed on one side of the drying box, an air inlet pipe is arranged on one side of the machine shell body, and an electric heating pipe heater is connected with the inner end of the air inlet pipe.

[0016] A centrifugal fan is fixed on the top of the machine shell body; an air outlet of the centrifugal fan is provided with an air exhaust; and the air exhaust is fixed in the drying box.

[0017] As a further technical scheme of the present application, the driving mechanism comprises a driving slot frame in engagement with the pull-down piece; the bottom of the driving slot frame is welded with a plurality of fixing plates, each of which is fixed with a driving rod at both sides, and the lower ends of the two driving rods penetrate into the bottom of the drying box and are jointly connected with an end plate;

[0018] The end plate is connected with a cam above; the cam is installed on the driving shaft in interference fit and is connected through a key; the driving shaft is installed on the bottom of the drying box through a bearing with a seat at both ends, and one end is further installed with a driving motor.

[0019] The base is installed in a pre-buried pit, and the driving mechanism between the two bases is ensured to have sufficient operation space; the two ends of the drying box are installed with sealed box doors.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1. In the present application, under the driving of the driving mechanism, the pull-down piece pulls the T-shaped rod to slide downward, and the driving disc tilts downward at the same time through the connecting fastener on the inner side of the fan-shaped net disc designed in four equal parts, at this time, the octagons on the outer side of the fan-shaped net disc surge to the inner side; after one cycle of rotation of the driving mechanism, the octagons on the inner side of the fan-shaped net disc swing upward at the same time under the action of the compression spring, at this time, the octagons on the inner side of the fan-shaped net disc surge to the outer side; thus, the octagons are shaken during the drying process.

[0022] 2. In the present application, the dynamic drying method can ensure that the moisture of the octagons is evenly evaporated, so that the moisture of the upper and lower layers and the inner and outer layers of the octagons is evaporated synchronously, avoiding excessive drying of part of the octagons; the "static stratification" of the octagons prevents the lower octagons from accumulating heat due to insufficient ventilation, and reduces the chemical decomposition and volatilization of anise oil due to high temperature.

[0023] 3. In the present application, the driving motor drives the driving shaft to rotate, and then the cam produces periodic up-and-down movement. The up-and-down movement of the cam is transmitted to the driving slot frame through the end plate and the driving rod, and finally the pull-down piece is pulled to make the T-shaped rod slide up and down in the guide sleeve. During this process, the compression spring plays a key role in resetting, ensuring that the T-shaped rod can be quickly reset when the cam rotates, thereby driving the fan-shaped net disc to swing up and down, realizing dynamic drying of the octagons. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0025] Figure 2 is a schematic diagram of the right side structure of the present application. Figure 1

[0026] Figure 3 is a schematic diagram of the right side structure of the present application. Figure 1 ​A schematic diagram of the bottom structure.

[0027] Figure 4 In this invention Figure 1 The left view.

[0028] Figure 5 In this invention Figure 4 AA sectional view.

[0029] Figure 6 This is a schematic diagram of the octagonal storage and drying rack in this invention.

[0030] Figure 7 In this invention Figure 6 The main view.

[0031] Figure 8 In this invention Figure 6 A partial structural diagram.

[0032] Figure 9 In this invention Figure 7 A partial structural diagram.

[0033] Figure 10 In this invention Figure 1 Enlarged illustration of point B.

[0034] Figure 11 In this invention Figure 3 Enlarged diagram of point C.

[0035] Figure 12 In this invention Figure 5 Enlarged diagram of point D.

[0036] Figure 13 In this invention Figure 7 Enlarged diagram of point E.

[0037] In the diagram: 1-Drying oven, 2-Drying mechanism, 3-Base, 4-Roller guide frame, 5-Hanging rail, 6-Drive mechanism, 7-Trolley body, 8-Drying tray fixing frame, 9-T-shaped rod, 10-Guide sleeve, 11-Compression spring, 12-Drive plate, 13-Drying tray, 14-Connecting fastener, 15-Positioning plate, 16-Hanging pulley fixing seat, 17-Hanging pulley, 18-Pull-down plate;

[0038] 21-Casing, 22-Air inlet pipe, 23-Electric heating element heater, 24-Centrifugal fan, 25-Air exhaust;

[0039] 61-Drive slot frame, 62-Fixed plate, 63-Drive rod, 64-Reset spring, 65-End plate, 66-Drive shaft, 67-Cam, 68-Drive motor. Detailed Implementation

[0040] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of the present application.

[0041] Please refer to Figures 1-13 In the specific embodiments of the present application, a star anise drying equipment for improving the content of star anise oil is introduced. The equipment is mainly composed of a drying box 1. In the inside of the drying box 1, a plurality of drying racks for storing and drying star anise are arranged. The design of these star anise storage and drying racks is particularly critical. They include a trolley body 7. On the inner side of the trolley body 7, a plurality of drying disc fixing frames 8 are arranged and fixed in sequence from top to bottom at equal intervals. In order to enhance the stability of the structure, a triangular plate is welded at each of the four corners of the inner side of each drying disc fixing frame 8. A positioning sheet 15 is welded at the middle position of the triangular plate.

[0042] Further, a drying disc 13 is arranged at the middle position of the drying disc fixing frame 8. The drying disc 13 is composed of four equally divided fan-shaped mesh discs. The inner side of each mesh disc is tightly buckled and fixed with a driving disc 12 through a connecting buckle 14, and the outer side is movably connected with the positioning sheet 15 through a rotating shaft. A plurality of driving discs 12 are arranged on the T-shaped rod 9 at equal intervals. The top of the T-shaped rod 9 penetrates to the upper side of the trolley body 7 and is slidably connected in the guide sleeve 10 embedded in the upper side of the trolley body 7. In order to provide the necessary elastic force, a compression spring 11 is sleeved at the upper end of the T-shaped rod 9, and the compression spring 11 is located above the guide sleeve 10.

[0043] In addition, the bottom of the T-shaped rod 9 is welded with a pull-down sheet 18, which is connected with the driving mechanism 6 to realize the driving function of the equipment. In this embodiment, the top of the trolley body 7 is also fixed with two lifting pulley fixing seats 16 arranged on both sides of the T-shaped rod 9. A lifting pulley 17 is installed on each lifting pulley fixing seat 16. The lifting pulleys 17 are slidably connected in the suspension rail 5, and the suspension rail 5 is fixed in the top side of the drying box 1 through the counterbore bolt.

[0044] By adopting the above technical scheme, when the star anise is dried, the star anise is first laid flat on the drying disc 13 layer by layer, and then the bottom of the star anise storage and drying rack containing the star anise is placed on the roller guide frame 4, so that the lifting pulley 17 slides into the suspension rail 5. A plurality of star anise storage and drying racks are arranged one by one, and then the door is closed. The drying mechanism 2 inputs dry hot air into the drying box 1 to dry the star anise.

[0045] During the drying process of star anise, the star anise needs to be stirred or shaken to improve the uniformity of the drying of the star anise.

[0046] The shaking of the star anise is achieved in the following way: under the driving of the driving mechanism 6, the lower pull piece 18 pulls the T-shaped rod 9 to slide downward, and the driving disc 12 simultaneously tilts the inner side of the four-equal-portion designed fan-shaped net disc downward through the connecting buckle 14, at this time, the star anise located on the outer side of the fan-shaped net disc surges to the inner side; after one cycle of rotation of the driving mechanism 6, the fan-shaped net disc is reset under the impetus of the compression spring 11, and the inner side of the fan-shaped net disc simultaneously swings upward, at this time, the star anise located on the inner side of the fan-shaped net disc surges to the outer side; thereby achieving the shaking of the star anise during the drying process.

[0047] The above-mentioned dynamic drying method can ensure that the moisture of the star anise is uniformly evaporated, and the moisture of the upper and lower layers and the inner and outer layers of the star anise is synchronously evaporated, avoiding the over-drying of part of the star anise; the "static stratification" of the star anise prevents the accumulation of heat in the lower layer of the star anise due to insufficient ventilation, and reduces the accelerated volatilization and chemical decomposition of anise oil due to high temperature.

[0048] In addition, the dynamic star anise drying method can reduce the humidity of the star anise accumulation place, inhibit the breeding of mold, and avoid the irreversible oil loss caused by the decomposition of oil by mold.

[0049] Please refer to the accompanying drawings Figures 1-5 In the embodiment, two roller guide frames 4 are fixed on the bottom side inside the drying box 1, the upper surface of the rollers inside the roller guide frames 4 is in contact with the bottom of the trolley body 7 to ensure the stable movement of the trolley body. The drying mechanism 2 is fixed on one side of the drying box 1, and the base 3 is fixed on both sides of the bottom of the drying box 1 to enhance the stability of the equipment.

[0050] By adopting the above technical scheme, the setting of the roller guide frame 4 can ensure that the star anise storage and drying rack slides into the drying box 1 along the roller guide frame 4 under the cooperation of the overhead rail 5 and the hoisting pulley 17, and can ensure that the lower pull piece 18 accurately enters the driving groove frame 61.

[0051] Especially worth mentioning is that the fan-shaped net disc is set in four equal parts, and a gap is left between every two adjacent fan-shaped net discs for the extension of the positioning piece 15, which greatly improves the operation convenience and positioning accuracy of the equipment.

[0052] In addition, the shaft provided on the positioning piece 15 provides a turning fulcrum for the four-equal-portion set fan-shaped net disc, ensuring that the fan-shaped net disc can swing up and down flexibly, and improving the dynamic driving effect of the star anise.

[0053] Please refer to the accompanying drawings Figure 5In the embodiment, the drying mechanism 2 includes a machine shell 21 fixed on one side of the drying box 1, an air inlet pipe 22 is arranged through one side of the machine shell 21, and an electric heating pipe heater 23 is connected to the inner end of the air inlet pipe 22. A centrifugal fan 24 is fixed on the top of the machine shell 21, and an air outlet of the centrifugal fan 24 is provided with an air outlet 25 fixed in the drying box 1 to ensure uniform distribution of hot air.

[0054] By adopting the above technical scheme, when the centrifugal fan 24 is turned on, the suction force generated by the centrifugal fan 24 causes the air outside the machine shell 21 to enter through the air inlet pipe 22. At this time, the electric heating pipe heater 23 heats the air, and the drying air is transported to the air outlet 25 under the transportation of the centrifugal fan 24. The air outlet 25 blows the dry hot air into the drying box 1 uniformly, and the eight corners placed on the drying tray 13 are subjected to all-round drying treatment. This design not only improves the drying efficiency, but also ensures that the eight corners are evenly heated during the drying process, avoiding the occurrence of local overheating or insufficient drying.

[0055] Please continue to refer to the accompanying drawings Figures 10-11 and Figure 13 In the embodiment, the driving mechanism 6 includes a driving groove frame 61 which is installed in clamping cooperation with the pull-down piece 18. A plurality of fixed plates 62 are welded to the bottom of the driving groove frame 61. Each fixed plate 62 is fixed with a driving rod 63 on both sides. The lower ends of the two driving rods 63 penetrate through the bottom of the drying box 1 and are connected to an end plate 65.

[0056] The end plate 65 is connected to a cam 67 above. The cam 67 is installed on the driving shaft 66 in interference fit and is connected by a key. The driving shaft 66 is installed on the bottom of the drying box 1 through a bearing with a seat at both ends, and a driving motor 68 is also installed on one end.

[0057] The base 3 is installed in a pre-buried pit, and the driving mechanism 6 between the two bases 3 has enough operation space. Sealed box doors are installed at both ends of the drying box 1.

[0058] By adopting the above technical scheme, the driving mechanism 6 is designed ingeniously. The driving motor 68 drives the driving shaft 66 to rotate, and then the cam 67 generates periodic up-down movement. The up-down movement of the cam 67 is transmitted to the driving groove frame 61 through the end plate 65 and the driving rod 63, and finally the pull-down piece 18 is pulled to make the T-shaped rod 9 slide up and down in the guide sleeve 10. During this process, the compression spring 11 and the return spring 64 play a key role in resetting. The compression spring 11 and the return spring 64 sleeved on the driving rod 63 can ensure that the T-shaped rod 9 can be quickly reset when the cam 67 rotates, so as to drive the fan-shaped mesh tray to swing up and down, realizing dynamic drying of the star anise.

[0059] In addition, the base 3 in this embodiment is designed to be stable and installed in a pre-embedded pit, which not only provides a solid foundation for the entire device but also ensures that the driving mechanism 6 has sufficient operating space, avoiding equipment failure or performance degradation due to insufficient space. At the same time, the sealed box doors installed at both ends of the drying box 1 effectively prevent heat loss and the entry of external impurities, further improving the drying effect and the service life of the equipment.

[0060] In summary, the present application adopts a dynamic drying method, combined with the carefully designed octagonal storage and drying rack and drying mechanism, to achieve uniform heating and efficient drying of star anise during the drying process, effectively increasing the content of star anise oil, and providing an efficient and reliable drying solution for the star anise processing industry.

[0061] A method for improving the content of star anise oil, which comprises the following detailed steps:

[0062] Step 1, picking and selection: carefully select high-quality star anise with full fruit segments and deep red color, and strictly remove damaged, moldy and unripe fruits; at the same time, ensure that the selected star anise fruit segments are intact without any damage and insect damage.

[0063] Step 2, washing and draining: use clean water to quickly and thoroughly wash off the impurities attached to the surface of the star anise, and then immediately drain the surface moisture, the entire washing and draining process is strictly controlled within half an hour to avoid oil loss caused by long soaking.

[0064] Step 3, preheat the equipment: gradually increase the temperature of the drying box to 35-40℃, then evenly lay the selected and washed star anise on the drying tray, ensure the single-layer thickness to maintain 3-4 centimeters, and leave enough ventilation gap to ensure the drying effect.

[0065] Step 4, segmented drying: first enter the first drying stage, control the temperature at 35-40℃, and set the drying time to 1-6 hours; in this stage, the humidity needs to be strictly controlled below 60%, and the ventilation is maintained at medium. Then enter the second drying stage, the temperature is raised to 40-45℃, and the drying time is extended to 6-12 hours; at this time, the humidity needs to be further reduced to below 50%, and the ventilation is increased. Finally, enter the third drying stage, the temperature continues to rise to 45-50℃, and the drying time is further extended to 12-20 hours; in this stage, the humidity needs to be controlled below 40%, and the ventilation is always maintained in good condition. The total time of the entire star anise drying process is flexibly adjusted according to the actual moisture content of the star anise, and the total control is within 18-22 hours; the whole process temperature should not exceed 50℃. During the drying process, the star anise needs to be turned over regularly, once every 4 hours, to ensure uniform heating of the star anise and avoid local overheating or incomplete drying.

[0066] Step 5, quality detection: firstly, the hand feeling detection is carried out to ensure that the fruit pieces are dry and elastic, not easy to break, and can quickly rebound after kneading; secondly, the moisture content detection is carried out to ensure that the star anise contains 8%-12% of water; then, the appearance observation is carried out to ensure that the color of the star anise remains dark red or brown red, without any blackening and sticking phenomenon; finally, the aroma judgment is carried out to ensure that the star anise aroma is rich and pure, without any odor. Through this series of strict quality detection, it is ensured that the final dried star anise is of high quality, and the anise oil content is significantly improved.

[0067] The working principle of the present application is: the present application realizes uniform evaporation and efficient removal of water in the drying process of star anise through a unique dynamic drying mechanism and a carefully designed equipment structure. Specifically, the equipment uses a driving mechanism to drive the T-shaped rod to slide up and down in the guide sleeve, thereby driving the drying disc composed of four equal fan-shaped net discs to periodically swing up and down. This swinging not only makes the star anise constantly turn on the drying disc, avoiding local overheating or insufficient drying caused by static accumulation, but also promotes the synchronous evaporation of water in the upper and lower layers and the inner and outer layers of the star anise, ensuring the uniformity of drying. At the same time, the dynamic drying method effectively reduces the humidity at the accumulation place of the star anise, inhibits the growth of mold, thereby avoiding the irreversible oil loss caused by mold decomposition of oil. In addition, the drying mechanism in the equipment blows the dry air heated by the electric heating pipe into the drying box uniformly through the centrifugal fan, and carries out all-round drying treatment on the star anise, further improving the drying efficiency and quality. In combination with the above factors, the present application successfully realizes the significant improvement of the anise oil content of star anise, and provides an efficient and reliable drying solution for the star anise processing industry.

[0068] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application should be defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0069] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A star anise drying apparatus for increasing the content of star anise oil, characterized in that: Including dry box (1), multiple octagonal storage drying racks are arranged inside the dry box (1); The octagonal storage drying rack comprises a trolley body (7), multiple drying disc fixing frames (8) are fixed at the inner side of the trolley body (7) from top to bottom in equal intervals, a triangular plate is welded at each of the four corners of the inner side of each drying disc fixing frame (8), and a positioning sheet (15) is welded at the middle position of the triangular plate; ​ The middle position of the drying disc fixing frame (8) is provided with a drying disc (13), the drying disc (13) is composed of four equal parts of fan-shaped mesh discs, the inner side of each mesh disc is fixedly connected with a driving disc (12) through a connecting buckle (14), and the outer side is movably connected with the positioning sheet (15) through a rotating shaft; The driving disc (12) is provided with multiple driving discs, which are welded on the T-shaped rod (9) in equal intervals; The top of the T-shaped rod (9) penetrates to the top of the trolley body (7) and is slidably connected in the guide sleeve (10); The guide sleeve (10) is embedded in the top of the trolley body (7); The upper end of the T-shaped rod (9) is further sleeved with a compression spring (11), and the compression spring (11) is located above the guide sleeve (10); The bottom of the T-shaped rod (9) is welded with a pull-down sheet (18), and the pull-down sheet (18) is connected with the driving mechanism (6).

2. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, characterized in that: The top of the trolley body (7) is further fixed with two lifting pulley fixing seats (16) arranged on the two sides of the T-shaped rod (9), one lifting pulley (17) is installed on each lifting pulley fixing seat (16); The lifting pulley (17) is slidably connected in the suspension rail (5); The suspension rail (5) is fixedly connected to the top side inside the dry box (1) through a counterbore bolt.

3. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, characterized in that: The bottom side inside the dry box (1) is fixed with two roller guide frames (4); The upper surface of the roller inside the roller guide frame (4) is in contact with the bottom of the trolley body (7).

4. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, characterized in that: One side of the dry box (1) is fixed with a drying mechanism (2); The bottom of the dry box (1) is fixed with a base (3) on both sides.

5. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, characterized in that: There is a gap between every two adjacent fan-shaped mesh discs in the four equal parts of fan-shaped mesh discs, which is convenient for the positioning sheet (15) to extend into.

6. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, wherein: The drying mechanism (2) comprises a machine shell body (21) fixed on one side of the dry box (1), and an air inlet pipe (22) penetrates one side of the machine shell body (21); The inner end of the air inlet pipe (22) is connected with an electric heating pipe heater (23); The top of the machine shell body (21) is fixed with a centrifugal fan (24); The air outlet of the centrifugal fan (24) is provided with an air exhaust (25); The air exhaust (25) is fixed inside the dry box (1).

7. The star anise oil content increasing star anise drying apparatus according to claim 1, characterized by: The driving mechanism (6) comprises a driving groove frame (61) which is fitted and installed with the pull-down sheet (18); The bottom of the driving groove frame (61) is welded with multiple fixed plates (62), one driving rod (63) is fixed on each side of each fixed plate (62), and the lower ends of the two driving rods (63) penetrate to the bottom of the dry box (1) and are jointly connected with an end plate (65); The top of the trolley body (7) is further fixed with two lifting pulley fixing seats (16) arranged on the two sides of the T-shaped rod (9), one lifting pulley (17) is installed on each lifting pulley fixing seat (16); The lifting pulley (17) is slidably connected in the suspension rail (5); The suspension rail (5) is fixedly connected to the top side inside the dry box (1) through a counterbore bolt. The end plate (65) is connected with a cam (67) on top; the cam (67) is installed on the drive shaft (66) with interference fit and is connected by key; the drive shaft (66) is installed on the bottom of the drying box (1) through the bearing with seat, and one end is also installed with the drive motor (68).

8. The star anise drying apparatus for increasing the oil content of star anise according to claim 1, wherein: The base (3) is installed in the embedded pit, and the drive mechanism (6) between the two bases (3) has enough operation space; the two ends of the drying box (1) are installed with the sealed box door.

9. A method for drying star anise with increased oil content, characterized by: The method comprises the following steps: Step 1, picking and screening: select the star anise with full fruit, dark red color, and remove the damaged, mildewed and unripe fruits; and ensure that the fruit is not damaged and not worm-eaten; Step 2, washing and draining: rinse the surface impurities with clean water, drain the surface moisture, and control the time within half an hour to avoid long soaking and prevent oil loss; Step 3, preheat the equipment, and increase the temperature of the drying box to 35-40℃, evenly spread the star anise on the drying tray, the single-layer thickness is 3-4cm, and the ventilation gap is reserved; Step 4, segment drying, first drying stage, temperature 35-40℃, drying time 1-6 hours; humidity control below 60%, medium ventilation; Second drying stage, temperature 40-45℃, drying time 6-12 hours; humidity control below 50%, increased ventilation; Third drying stage, temperature 45-50℃, drying time 12-20 hours, humidity control below 40%, keep ventilation; The total drying time of star anise is adjusted according to the water content, controlled within 18-22 hours; the whole process temperature is ≤50℃; it needs to be turned over during the process, and turned over every 4 hours to ensure uniform heating; Step 5, quality detection, hand feeling detection: the dried fruit has elasticity and is not easy to break, and can quickly rebound after kneading; Water content detection: measured by moisture meter, water content 8%-12%; Appearance observation: the color remains dark red or brown red, without blackening and sticking phenomenon; Aroma judgment: can smell the strong star anise aroma, no odor.

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