A device for collecting Beauveria bassiana spore powder from medicinal silkworms.

Abstract

This invention relates to the field of spore collection technology, specifically to a collection device for Beauveria bassiana spores from the medicinal silkworm. It includes a frame, a horizontal vibrating collection frame slidably connected to the frame, and a horizontal drive mechanism on the frame that drives the horizontal vibrating collection frame to vibrate alternately with a first, second, and third amplitude. A vertical vibrating collection frame is slidably connected to the horizontal vibrating collection frame, and a vertical drive mechanism between the two drives the vertical vibrating collection frame to vibrate alternately with a fourth, fifth, and sixth amplitude. A front collection cylinder and a rear collection cylinder are both fixedly connected to the horizontal vibrating collection frame. A collection shaft tube coaxially arranged with the front collection cylinder and a conveying shaft coaxially arranged with the rear collection cylinder are rotatably connected to the vertical vibrating collection frame. The beneficial effect of this invention is that it organically integrates mechanical peeling, airflow purging, and negative pressure suction to form an integrated continuous collection process of peeling, purging, and suction.

Description

Technical Field

[0001] This invention relates to the field of spore collection technology, specifically to a device for collecting Beauveria bassiana spores from the medicinal silkworm. Background Technology

[0002] As one of the core medicinal components of medicinal silkworm, the collection efficiency, purity and activity retention of Beauveria bassiana spore powder directly affect the quality of the medicinal raw material and the subsequent development of its medicinal value. At the same time, the integrity of the silkworm body also determines whether it can continue to be used as a medicinal raw material. Therefore, the spore powder collection equipment must take into account both the spore powder collection effect and the dual utilization of silkworm raw material. Currently, existing technologies for collecting Beauveria bassiana spores from medicinal silkworms mostly employ a single method of mechanical vibration peeling, airflow purging, or negative pressure suction. While some devices attempt to combine two methods, they suffer from issues such as single vibration parameters, non-directional airflow purging, and inconsistent connection between mechanical peeling and negative pressure collection. This not only leads to incomplete spore peeling and untimely collection, significantly reducing the spore collection rate, but also easily causes damage to the silkworm body due to harsh operation, resulting in a significant reduction in the yield of finished silkworm products. Furthermore, the purity and activity of the spores are difficult to guarantee, leading to numerous technical defects in the quality control of medicinal raw materials. Based on this, the present invention provides a device for collecting Beauveria bassiana spore powder from medicinal silkworm to solve the problems mentioned in the background art. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a collection device for Beauveria bassiana spore powder from medicinal silkworm. This solves the problems that existing collection devices mostly use a single mechanical vibration peeling, airflow purging or negative pressure suction method to collect spore powder, which has the problems of single vibration parameters, non-directional airflow purging, and inconsistent connection between mechanical peeling and negative pressure collection.

[0004] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A device for collecting Beauveria bassiana spore powder from medicinal silkworm, comprising a frame, and further comprising: A horizontal vibration acquisition frame is slidably connected to a frame, and the frame is equipped with a horizontal drive mechanism that drives the horizontal vibration acquisition frame to vibrate alternately with a first amplitude, a second amplitude, and a third amplitude. A vertical vibration acquisition frame is slidably connected to a horizontal vibration acquisition frame, and a vertical drive mechanism is provided between the two to drive the vertical vibration acquisition frame to vibrate alternately with a fourth amplitude, a fifth amplitude, and a sixth amplitude. Both the front and rear collection cylinders are fixedly connected to the horizontal vibrating collection frame. The vertical vibrating collection frame is rotatably connected to a collection shaft tube coaxial with the front collection cylinder and a conveying shaft coaxial with the rear collection cylinder. The inner walls of both the front and rear collection cylinders are arrayed with high-pressure jet holes, and the inner wall of the collection shaft tube is arrayed with collection suction holes. From top to bottom, the outer circumference of the collection shaft tube is sequentially equipped with a spiral feeding screen and two moving brush plates. The inner wall of the front collection cylinder is fixedly equipped with two stationary brush plates at positions corresponding to the two moving brush plates. The conveying shaft is fixedly connected with a spiral lifting screen. The spiral feeding screen and the spiral lifting screen are arrayed with screening micro-holes. The front and rear collection cylinders are respectively connected by a feeding pipe and a return pipe. Nitrogen storage tank, configured to deliver gas through high-pressure jet nozzles; The negative pressure collection mechanism is configured to connect with the collection suction hole and the rear collection tube to collect spores; The sieve box contains a sieving mechanism that enables three-stage sieving of spore powder.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Preferably, a microcontroller is fixedly installed on the front end face of the frame, a feed valve pipe is connected to the top of the front collecting cylinder, and a discharge valve is connected to the bottom of the rear collecting cylinder.

[0007] Preferably, the horizontal drive mechanism includes a dual-head motor fixed on the frame. A horizontal eccentric wheel is fixedly mounted on one output shaft of the dual-head motor and is connected to a first synchronous belt. Three first eccentric vibration parts are arrayed on the horizontal eccentric wheel along the circumferential direction. A follower roller is rotatably connected to the horizontal vibration acquisition frame. The three first eccentric vibration parts alternately abut against the follower roller, and the abutting stroke of the three first eccentric vibration parts against the follower roller is different. Two horizontal re-vibration springs are installed between the horizontal vibration acquisition frame and the frame. The acquisition shaft tube and the conveying shaft are both connected to the first synchronous belt.

[0008] Preferably, a tensioning sliding seat is slidably connected to the frame, a tensioning guide wheel is rotatably connected to the tensioning sliding seat, a tensioning spring is installed between the tensioning sliding seat and the frame, two prisms are rotatably connected to the horizontal vibration acquisition frame, a second synchronous belt is driven between the two prisms, the tensioning guide wheel and one of the prisms are driven by the first synchronous belt, the acquisition shaft tube and the conveying shaft are both provided with shaft grooves with open tops, the two shaft grooves are slidably connected to the two prisms respectively, and the cross-sections of the shaft grooves and the prisms are all regular hexagons.

[0009] Preferably, the vertical drive mechanism includes a follower guide roller rotatably connected to the horizontal vibration acquisition frame and a vertical eccentric wheel rotatably connected to the frame. A linkage bevel gear is installed on the other output end of the dual-head motor and on the vertical eccentric wheel. The two linkage bevel gears mesh orthogonally. Along the circumferential direction, three second eccentric vibration parts are arrayed on the vertical eccentric wheel. The three second eccentric vibration parts alternately abut against the follower guide roller, and the abutment stroke of each of the three second eccentric vibration parts against the follower guide roller is different. Two vertical re-vibration springs are installed on the bottom surface of the vertical vibration acquisition frame, and the other ends of the two vertical re-vibration springs are fixedly connected to the horizontal vibration acquisition frame.

[0010] Preferably, both the front and rear extraction cylinders are provided with annular gas chambers that communicate with high-pressure jet holes, and the outlet port of the nitrogen storage tank is connected to a corrugated gas delivery pipe. Both annular gas chambers are fixedly connected to the corrugated gas delivery pipe.

[0011] Preferably, the negative pressure collection mechanism includes a negative pressure fan fixedly mounted on the frame, a main collection pipe fixedly connected to the bottom of the front collection cylinder, a collection flow channel opened inside the collection shaft tube, the bottom end of the collection flow channel connected to the main collection pipe, the collection suction hole connected to the collection flow channel, a secondary collection pipe connected to the bottom of the rear collection cylinder, the other end of the secondary collection pipe connected to the main collection pipe, a corrugated metal connecting pipe connected to the air inlet of the negative pressure fan, the other end of the corrugated metal connecting pipe connected to the main collection pipe, and the air outlet of the negative pressure fan connected to the screen box.

[0012] Preferably, the screening mechanism includes three screening frames installed sequentially in the screen box along the airflow direction. Each of the three screening frames is equipped with a screen mesh, and the screen mesh aperture of the three screen meshes decreases in the airflow direction. A discharge plate is engaged at the bottom of the screen box and at the position of the three adjacent screening frames. An exhaust valve is connected to the air outlet of the screen box.

[0013] Preferably, nylon bristles are arrayed on the surfaces of both the moving brush plate and the stationary brush plate. The diameter of the nylon bristles is 0.2 mm. The spiral feeding screen blades and the spiral lifting screen blades have opposite spiral directions, and both are made of soft polyurethane material.

[0014] Preferably, the high-pressure jet hole is inclined downwards and the angle between the axis of the high-pressure jet hole and the horizontal plane is 45°, and the collection suction hole is horizontal.

[0015] The beneficial effects of this invention are: 1. This invention organically integrates mechanical peeling, airflow purging, and negative pressure suction to form an integrated continuous collection process of peeling, purging, and suction. Compared with traditional single or simple combination collection methods, it fundamentally solves the problems of incomplete spore peeling and untimely collection, significantly improving the spore collection rate. The collection shaft tube and the conveying shaft are linked to the horizontal drive mechanism through the first synchronous belt, realizing the integrated power supply of vibration and rotation, simplifying the transmission structure. The high-pressure jet hole is set at a 45° downward tilt, and the nitrogen storage tank provides directional high-pressure airflow to uniformly purge the surface of the silkworm. The annular air chamber ensures consistent air pressure and avoids dead zones in the airflow. At the same time, the nylon bristles on the surfaces of the moving brush plate and the stationary brush plate are aligned with each other. The process involves gently brushing the folds and crevices of the silkworm to completely remove spores that are difficult to blow off using traditional methods. The removed spores are immediately drawn into the main collection pipe by a negative pressure system formed by the collection suction port and a negative pressure fan, avoiding secondary sedimentation or adhesion and further improving the spore collection rate and purity. At the same time, the invention adopts a flexible operation method throughout the process. The nylon brush bristles, soft polyurethane screens, and gentle airflow pressure all ensure that the silkworm remains undamaged. Compared with traditional equipment, which is prone to scratching and crushing the silkworms, this method significantly improves the yield of finished silkworm products. It truly balances the efficient collection of spores with the subsequent medicinal value of the silkworm raw material, achieving dual utilization of the raw material and improving the overall utilization rate and economic value of the medicinal raw material.

[0016] 2. This invention, through the coordinated operation of horizontal and vertical drive mechanisms, enables the horizontal and vertical vibration collection frames to vibrate alternately with three different amplitudes, forming a three-dimensional composite vibration effect. Compared to the single vibration parameters of traditional equipment, this optimizes the spore powder stripping effect from the vibration mode, laying the foundation for improving the spore powder collection rate. The alternating action of the three amplitudes of horizontal vibration causes the silkworms in the front and rear collection cylinders to undergo horizontal displacement and tumbling, breaking the adhesion between the spore powder and the surface of the silkworms. The alternating action of the three amplitudes of vertical vibration causes the silkworms to jump up and down in the vertical direction, further increasing the collection rate of the silkworms. The flexible contact and collision opportunities between the silkworm and the internal components of the cylinder, combined with the interaction of these two factors, cause the silkworm to make irregular three-dimensional movements within the cylinder. This allows the spores on all parts of the silkworm's body surface to be fully peeled off, significantly improving the mechanical peeling efficiency of the spores and thus increasing the overall collection rate. At the same time, the composite vibration of this invention is a gradient flexible vibration, which, compared to the high-intensity and irregular vibration of traditional equipment, avoids damage to the silkworm caused by violent collisions, ensuring the integrity of the silkworm body and improving the yield of finished silkworms. Furthermore, the elastic reset of the horizontal and vertical re-vibration springs ensures the regularity and stability of the vibration, preventing amplitude deviation from affecting the collection effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a device for collecting Beauveria bassiana spore powder from medicinal silkworms according to the present invention. Figure 2 For the present invention Figure 1 A structural diagram from another perspective; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4 For the present invention Figure 2 A schematic diagram of the cross-sectional structure; Figure 5 For the present invention Figure 4 A magnified view of the structure at point B in the middle; Figure 6 This is a schematic diagram of the structure of the horizontal resonant spring and the vertical eccentric wheel of the present invention; Figure 7 This is a schematic diagram of the structure of the follower roller and the rear sampling cylinder of the present invention; Figure 8 This is a schematic diagram of the vertical resonant spring of the present invention; Figure 9 This is an exploded structural diagram of the prism and the collection shaft tube of the present invention; Figure 10 This is a schematic diagram of the tension guide wheel and tension spring of the present invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Horizontal vibrating acquisition frame; 3. Vertical vibrating acquisition frame; 4. Front acquisition cylinder; 5. Rear acquisition cylinder; 6. Feed pipe; 7. Return pipe; 8. Nitrogen storage tank; 9. Screen box; 10. Negative pressure fan; 101. Microcontroller; 102. Tensioning sliding seat; 103. Tensioning guide wheel; 104. Tensioning spring; 105. Prism shaft; 201. Dual-head motor; 202. Horizontal eccentric wheel; 203. First eccentric vibrating part; 204. Follower roller; 205. Horizontal re-vibration spring; 301. Follower guide roller; 302. Vertical eccentric wheel; 30 3. Second eccentric vibrating section; 304. Vertical re-vibration spring; 401. Collection shaft tube; 402. High-pressure jet nozzle; 403. Collection suction hole; 404. Spiral feeding screen blade; 405. Moving brush plate; 406. Stationary brush plate; 407. Feed valve tube; 408. Annular air chamber; 501. Conveying shaft; 502. Spiral lifting screen blade; 503. Screening micropores; 504. Discharge valve; 910. Screening frame; 920. Discharge plate; 930. Exhaust valve; 1001. Main collection pipe; 1002. Secondary collection pipe; 1003. Corrugated metal connecting pipe. Detailed Implementation

[0019] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0020] The present invention provides the following preferred embodiments. like Figure 1-10 As shown, a device for collecting Beauveria bassiana spore powder from the medicinal silkworm includes a frame 1, with a microcontroller 101 fixedly mounted on the front end of the frame 1, and also includes: A horizontal vibration acquisition frame 2 is slidably connected to a frame 1. The frame 1 is provided with a horizontal drive mechanism that drives the horizontal vibration acquisition frame 2 to vibrate alternately with a first amplitude, a second amplitude, and a third amplitude. The horizontal drive mechanism includes a dual-head motor 201 fixed on the frame 1. A horizontal eccentric wheel 202 is fixedly mounted on one output shaft of the dual-head motor 201 and is connected to a first synchronous belt. Three first eccentric vibration parts 203 are arranged in an array on the horizontal eccentric wheel 202 along the circumferential direction. A follower roller 204 is rotatably connected to the horizontal vibration acquisition frame 2. The three first eccentric vibration parts 203 alternately abut against the follower roller 204, and the abutting stroke of the three first eccentric vibration parts 203 against the follower roller 204 is different. Two horizontal re-vibration springs 205 are installed between the horizontal vibration acquisition frame 2 and the frame 1. In a preferred embodiment, the first amplitude is 5 mm, the second amplitude is 8 mm, and the third amplitude is 12 mm; Driven by a dual-head motor 201, the horizontal eccentric wheel 202 rotates. The three first eccentric vibration parts 203 alternately abut against the follower roller 204 with different abutment strokes. Combined with the elastic reset effect of the horizontal re-vibration spring 205, it can accurately drive the horizontal vibration collection frame 2 to achieve alternating horizontal amplitudes of 5mm, 8mm, and 12mm. This allows the silkworms in the front collection cylinder 4 and the rear collection cylinder 5 to move and roll with the horizontal vibration, breaking the adhesion between the silkworms and the spore powder, thus providing a foundation for subsequent spore powder peeling. The horizontal re-vibration spring 205 allows the horizontal vibration collection frame 2 to quickly reset after vibration, ensuring the regularity and stability of horizontal vibration and avoiding amplitude deviation from affecting the spore collection effect. The vertical vibration acquisition frame 3 is slidably connected to the horizontal vibration acquisition frame 2, and a vertical drive mechanism is provided between the two to drive the vertical vibration acquisition frame 3 to vibrate alternately with the fourth amplitude, the fifth amplitude and the sixth amplitude; The vertical drive mechanism includes a follower guide roller 301 rotatably connected to the horizontal vibration acquisition frame 2 and a vertical eccentric wheel 302 rotatably connected to the frame 1; In a preferred embodiment, the length of the follower roller 301 is 5 times the width of the vertical eccentric wheel 302, thereby ensuring that when the horizontal vibration acquisition frame 2 moves horizontally, the vertical eccentric wheel 302 can continuously drive the follower roller 301 and maintain the transmission relationship. The other output end of the dual-head motor 201 and the vertical eccentric wheel 302 are both equipped with linkage bevel gears. The two linkage bevel gears mesh orthogonally. Along the circumferential direction, the vertical eccentric wheel 302 is arranged with three second eccentric vibration parts 303. The three second eccentric vibration parts 303 alternately abut against the follower guide roller 301, and the abutment stroke of the follower guide roller 301 is different when the three second eccentric vibration parts 303 alternately abut against the follower guide roller 301. The bottom surface of the vertical vibration acquisition frame 3 is equipped with two vertical re-vibration springs 304. The other end of the two vertical re-vibration springs 304 is fixedly connected to the horizontal vibration acquisition frame 2. In a preferred embodiment, the fourth amplitude is 3 mm, the fifth amplitude is 6 mm, and the sixth amplitude is 9 mm; The vertical eccentric wheel 302 is driven to rotate by the output shaft of the other end of the dual-head motor 201 through the linkage bevel gear. The three second eccentric vibration parts 303 alternately abut against the follower guide roller 301 with different abutment strokes. Combined with the elastic effect of the vertical re-vibration spring 304, the vertical vibration collection frame 3 is driven to achieve three levels of vertical amplitude alternating vibration of 3mm, 6mm and 9mm. This forms a three-dimensional composite vibration effect with the horizontal vibration of the horizontal vibration collection frame 2, causing the silkworms in the front collection cylinder 4 and the rear collection cylinder 5 to make irregular up-down and left-right composite movements. This greatly increases the contact and collision opportunities between silkworms and between silkworms and the internal components of the cylinder, further promoting the peeling of Beauveria bassiana spores from the surface of the silkworms and improving the peeling efficiency of spores. The vertical re-vibration spring 304 provides a stable reset support for the vertical vibration acquisition frame 3, ensuring the uniformity of vertical vibration; Both the front sampling cylinder 4 and the rear sampling cylinder 5 are fixedly connected to the horizontal vibrating sampling frame 2. The top of the front sampling cylinder 4 is connected to the feed valve pipe 407, and the bottom of the rear sampling cylinder 5 is connected to the discharge valve 504. The vertical vibration acquisition frame 3 is rotatably connected to an acquisition shaft tube 401 coaxially arranged with the front acquisition tube 4 and a conveying shaft 501 coaxially arranged with the rear acquisition tube 5; Both the acquisition shaft tube 401 and the conveying shaft 501 are connected to the first synchronous belt drive.

[0021] The horizontal drive mechanism is linked with the acquisition shaft tube 401 and the conveying shaft 501 through the first synchronous belt to realize the integrated power supply for vibration and shaft rotation, reduce the number of power sources of the equipment, simplify the overall transmission structure, and reduce the equipment failure rate and energy consumption. In a preferred embodiment, the rotational speed of both the acquisition shaft tube 401 and the conveying shaft 501 is set to 30 r / min, and the two shafts operate synchronously at the same speed to avoid squeezing, collision and damage caused by speed difference. Preferably, a tensioning slide seat 102 is slidably connected to the frame 1, a tensioning guide wheel 103 is rotatably connected to the tensioning slide seat 102, a tensioning spring 104 is installed between the tensioning slide seat 102 and the frame 1, two prism shafts 105 are rotatably connected to the horizontal vibration acquisition frame 2, a second synchronous belt is driven between the two prism shafts 105, the tensioning guide wheel 103 and one prism shaft 105 are both driven by the first synchronous belt, the top of the acquisition shaft tube 401 and the conveying shaft 501 are both provided with shaft grooves with open tops, the two shaft grooves are slidably connected to the two prism shafts 105 respectively, and the cross-sections of the shaft grooves and the prism shafts 105 are all regular hexagons.

[0022] The hexagonal prism 105 slides into the shaft groove, which can not only realize the torque transmission of the prism 105 to the acquisition shaft tube 401 and the conveying shaft 501, ensuring that the acquisition shaft tube 401 and the conveying shaft 501 rotate synchronously with the first synchronous belt, but also adapt to the vertical vibration of the horizontal and vertical vibration acquisition frame 3, so that the acquisition shaft tube 401 and the conveying shaft 501 can slide up and down along the prism 105 during vibration, avoiding the displacement caused by vibration from pulling or jamming damage to the transmission structure, and ensuring the stability and service life of the transmission system; The coordinated arrangement of the tensioning sliding seat 102, tensioning guide wheel 103, and tensioning spring 104 can automatically adjust the tension of the first synchronous belt, ensuring that the collecting shaft tube 401 and the conveying shaft 501 always maintain a stable rotation speed. At the same time, the two prism shafts 105 are linked through the second synchronous belt to ensure the synchronization of the rotation speed of the collecting shaft tube 401 and the conveying shaft 501, avoiding the squeezing and collision damage of the silkworms in the cylinder due to the difference in rotation speed, and reducing the loss of silkworm raw materials. High-pressure jet holes 402 are arrayed on the inner walls of both the front mining tube 4 and the rear mining tube 5. The high-pressure jet holes 402 are inclined downward and the angle between the axis of the high-pressure jet holes 402 and the horizontal plane is 45°. Nitrogen storage tank 8 is configured to deliver gas through high-pressure jet port 402; Both the front and rear extraction tubes 4 and 5 are equipped with annular gas chambers 408 that are connected to the high-pressure jet vent 402. The outlet port of the nitrogen storage tank 8 is connected to a corrugated gas delivery pipe. Both annular gas chambers 408 are fixedly connected to the corrugated gas delivery pipe.

[0023] The corrugated air supply pipe is equipped with an integrated pressure regulating valve and a flow regulating valve. In a preferred embodiment, the outlet pressure of the high-pressure jet vent 402 is set to 0.2 MPa and the outlet flow rate is set to 1.2 m3 / min. Under the action of a gentle airflow, the spore powder is efficiently peeled off and collected, further reducing the silkworm breakage rate. The nitrogen storage tank 8 delivers high-pressure nitrogen to the annular gas chamber 408 through a corrugated gas delivery pipe. The high-pressure nitrogen is evenly sprayed out through the high-pressure jet hole 402, which is set at a 45° downward angle, forming a directional high-pressure airflow. The airflow acts directly on the surface of the silkworm, which can form a gentle blowing and peeling effect on the spore powder adhering to the surface of the silkworm. The outlet pressure of 0.2MPa and the outlet flow rate of 1.2m3 / min not only ensure the efficient peeling of spore powder, but also avoid the high-pressure airflow from damaging the silkworm body and reducing the waste of raw materials. The setting of the annular air chamber 408 ensures that the air pressure of the high-pressure jet hole 402 is uniform, so that the silkworms in each position in the front collection tube 4 and the rear collection tube 5 can be swept by the uniform airflow, ensuring the uniformity of spore powder peeling and no peeling dead corners. Nitrogen, as an inert gas, can create an inert atmosphere inside the cylinder while purging and stripping, effectively preventing the Beauveria bassiana spore powder from oxidizing and deteriorating during collection, thus ensuring the medicinal activity of the spore powder. The flexible connection characteristics of the corrugated air supply pipe can adapt to the combined vibration of horizontal and vertical directions, avoiding bending and breakage of the air supply pipe due to vibration, and ensuring the sealing and stability of the air supply system. The inner wall of the collecting shaft tube 401 is arrayed with collecting suction holes 403, which are arranged horizontally. From top to bottom, the outer circumference of the collecting shaft tube 401 is sequentially equipped with a spiral feeding screen blade 404 and two moving brush plates 405. The inner wall of the front collecting cylinder 4 is fixed with two stationary brush plates 406 corresponding to the positions of the two moving brush plates 405. A spiral lifting screen blade 502 is fixedly connected to the conveying shaft 501. Both the spiral feeding screen blade 404 and the spiral lifting screen blade 502 are arrayed with screening micro holes 503. The front collecting cylinder 4 and the rear collecting cylinder 5 are respectively connected by a feeding pipe 6 and a return pipe 7. The sieve micropores 503 are arranged vertically, and in a preferred embodiment, the radius of the sieve micropores 503 is 0.75 mm; Nylon bristles are arrayed on the surfaces of both the moving brush plate 405 and the stationary brush plate 406. The diameter of the nylon bristles is 0.2mm. The spiral feeding screen blade 404 and the spiral lifting screen blade 502 have opposite spiral directions, and both are made of soft polyurethane material. The collecting shaft tube 401 drives the spiral feeding screen 404 to rotate at a speed of 30 r / min. The spiral structure of the spiral feeding screen 404 can drive the silkworm in the front collecting cylinder 4 to move slowly from top to bottom, realizing the orderly transportation of the silkworm. At the same time, the 0.75 mm radius screening micropores 503 arrayed on its surface can allow the peeled spore powder to enter the collecting area through the sieve holes, realizing the initial separation of spore powder and silkworm. Two moving brush plates 405 rotate with the collection shaft tube 401, forming relative motion with the stationary brush plate 406. The 0.2mm diameter nylon bristles on the surfaces of the two brush plates come into contact and rub against each other, which can gently brush the silkworms that pass by, and thoroughly brush off the spores that are difficult to be blown off by the airflow in the folds and crevices of the silkworms, further improving the collection rate of spores. Moreover, the flexible material of the nylon bristles will not cause scratches or damage to the silkworms. The spiral lifting screen 502 on the conveying shaft 501 has the opposite spiral direction to the spiral feeding screen 404, which can drive the silkworm in the rear collection cylinder 5 to move from bottom to top, forming a circular conveying of silkworm with the feeding of the front collection cylinder 4, so that the silkworm repeatedly goes through the blowing, brushing and screening process in the front and rear collection cylinders 5, ensuring that the spore powder is peeled off more thoroughly. Both the spiral feeding screen blade 404 and the spiral lifting screen blade 502 are made of soft polyurethane material, which is soft and wear-resistant. When in contact with silkworms, it is a flexible contact, avoiding the squeezing and damage of silkworms by hard parts. At the same time, the polyurethane material screen blades are not easy to adhere to spore powder, reducing the waste of spore powder residue. The negative pressure collection mechanism is configured to connect with the collection suction hole 403 and the rear collection cylinder 5 to collect spores; The negative pressure collection mechanism includes a negative pressure fan 10 fixedly mounted on the frame 1, a main collection pipe 1001 fixedly connected to the bottom of the front collection cylinder 4, a collection flow channel opened inside the collection shaft pipe 401, the bottom end of the collection flow channel connected to the main collection pipe 1001, a collection suction hole 403 connected to the collection flow channel, a secondary collection pipe 1002 connected to the bottom of the rear collection cylinder 5, the other end of the secondary collection pipe 1002 connected to the main collection pipe 1001, a corrugated metal connecting pipe 1003 connected to the air inlet port of the negative pressure fan 10, the other end of the corrugated metal connecting pipe 1003 connected to the main collection pipe 1001, and an air outlet port of the negative pressure fan 10 connected to the screen box 9. The negative pressure fan 10 forms a negative pressure suction system through the corrugated metal connecting pipe 1003, the main collection pipe 1001 and the auxiliary collection pipe 1002. The collection flow channel in the collection shaft pipe 401 cooperates with the horizontally set collection suction hole 403 to accurately suction the spore powder that is blown and brushed off by the airflow in the front collection cylinder 4, so that the spore powder enters the collection flow channel through the collection suction hole 403 and is then collected through the main collection pipe 1001. The spores that are not completely collected in the rear collection tube 5 are drawn into the main collection tube 1001 through the secondary collection tube 1002, so as to achieve unified collection of spores in the front and rear collection tubes 5, with no collection omissions, and greatly improve the collection efficiency of spores. The flexible metal structure of the corrugated metal manifold 1003 not only has good sealing performance, but also can adapt to the combined vibration of the equipment, avoiding leakage or damage to the suction pipe due to vibration, and ensuring the stability of the negative pressure suction system. The negative pressure collection mechanism combines negative pressure suction with mechanical peeling and airflow purging to form an integrated collection process of peeling, purging and suction. This allows the peeled spores to be quickly and timely absorbed and collected, preventing the spores from settling in the cylinder and adhering to the surface of the silkworm again, thus further improving the collection effect.

[0024] The sieve box 9 is equipped with a sieving mechanism that enables three-stage sieving of spore powder.

[0025] The screening mechanism includes three screening frames 910 installed sequentially in the screen box 9 along the airflow direction. Each of the three screening frames 910 is equipped with a screen, and the screen aperture of the three screens decreases in the airflow direction. Discharge plates 920 are engaged at the bottom of the screen box 9 and at the positions of the three adjacent screening frames 910. The three discharge plates 920 correspond one-to-one with the three screening frames 910 and are used to receive the material screened by each screen and to discharge it. The air outlet of the screen box 9 is connected to an exhaust valve 930.

[0026] In a preferred embodiment, the first screen has an 80-mesh aperture, and its core screening function is coarse screening to remove impurities. The mixture conveyed by the negative pressure fan 10 first passes through this screen, and large-particle impurities such as silkworm fragments, undispersed spore clumps, and silkworm limb residues are intercepted on the surface of the first screen, thus achieving the initial separation of the mixture from the large-particle impurities. The second screen has a sieve aperture of 150 mesh, and its core screening function is medium sieve separation. When the material airflow that has passed through the coarse sieve passes through this screen, medium-sized Beauveria bassiana spore powder is intercepted, forming a spore powder semi-finished product, which can be used as a basic grade of pharmaceutical raw material. The third screen has a sieve aperture of 200 mesh, and its core screening function is fine screening and purification. When the remaining fine-particle material airflow passes through this screen, the high-purity, fine-particle Beauveria bassiana spore powder product is intercepted. During operation, the pre-collection tube 4 serves as the main collection tube for spores and uses a combined collection method of mechanical peeling, airflow purging, and negative pressure suction. The post-collection tube 5 is a secondary collection tube for spores and pollen, which adopts a collection method of circulating turning, airflow reblowing and negative pressure supplementation; During operation, the pre-collection tube 4 serves as the main collection tube for spores and uses a combined collection method of mechanical peeling, airflow purging, and negative pressure suction. The post-collection tube 5 is a secondary collection tube for spores and pollen, which adopts a collection method of circulating turning, airflow reblowing and negative pressure supplementation; Compared to the traditional single-tube, non-circulating collection method, the dual-tube circulating collection design of this invention enables the layered peeling and bottom collection of spore powder, greatly improving the spore powder collection rate. The front collection tube 4 is the core collection tube, which focuses on the comprehensive removal and immediate collection of spores through a combination of mechanical brushing, airflow purging and negative pressure direct suction, driving the silkworms to move unidirectionally from top to bottom, and the processed silkworms are transported to the rear collection tube 5. The rear collection tube 5 is an auxiliary collection tube. It focuses on deep stripping and bottom collection of residual spores that are easily missed in the traditional method through airflow reblowing and negative pressure supplementation. It drives the silkworms to turn over from bottom to top. The processed silkworms can flow back to the front collection tube 4. If the standard is not met, the material will not be unloaded. The alternating cyclic collection mode formed by the front collection cylinder 4 and the rear collection cylinder 5 through the feeding pipe 6 and the return pipe 7 fully exposes all hidden areas on the surface of the silkworm, realizing the full-dimensional and dead-angle-free peeling of spores and further improving the spore collection rate from the collection process. Furthermore, throughout the entire cycle, the soft polyurethane material of the spiral lifting screen 502 and the spiral feeding screen 404, the gentle airflow purging pressure, and the gradient alternating composite vibration are all flexible operations throughout the process, which is a significant improvement over the problem of repeated damage to silkworms caused by multiple processing steps in traditional equipment. This invention enables multiple cycles of processing of silkworm pupae without any damage, significantly improving the yield of finished silkworm pupae, and truly taking into account both the efficiency of spore powder collection and the subsequent medicinal value of the silkworm pupae, thus achieving dual utilization of raw materials. Meanwhile, the material forms an orderly dynamic flow within the equipment, avoiding the material accumulation problem of single-cylinder processing. The negative pressure collection system remains stable during circulation, and the spore powder is continuously extracted, preventing it from settling or clumping within the cylinder. This forms a dynamically balanced collection system, improving the stability and continuity of equipment operation. It is suitable for industrialized mass production and can achieve large-scale operation while ensuring high collection rate and high finished product rate. The specific steps for using this invention are as follows: During the preparation phase, the various parameters of the equipment are first debugged using the microcontroller 101. The horizontal vibration acquisition frame 2 is set to three alternating amplitudes of 5mm, 8mm, and 12mm, and the vertical vibration acquisition frame 3 is set to three alternating amplitudes of 3mm, 6mm, and 9mm. The rotation speed of the acquisition shaft tube 401 and the conveying shaft 501 is adjusted to 30r / min, and the air pressure of the high-pressure jet hole 402 is adjusted to 0.2MPa and the flow rate is adjusted to 1.2m3 / min. Then, the nitrogen storage tank 8 is started to supply air to the annular air chamber 408 of the front and rear acquisition cylinders 5. The negative pressure fan 10 is turned on to form a stable negative pressure in the main collection pipe 1001, the secondary collection pipe 1002, and the acquisition shaft tube 401. At the same time, the tensioning mechanism, the re-vibration spring, and the connection status of each pipeline are checked to ensure that there are no abnormalities in the equipment transmission and air circuit system. During the working phase, the feed valve pipe 407 at the top of the front collection cylinder 4 is opened first, and the medicinal silkworm is put into the front collection cylinder 4. The double-head motor 201 is started to drive the horizontal and vertical drive mechanisms to operate, so that the horizontal and vertical vibrating collection frame 3 generates three-dimensional composite vibration, causing the silkworm to roll irregularly inside the cylinder. At the same time, the collection shaft pipe 401 and the conveying shaft 501 rotate synchronously. Inside the front collection cylinder 4, the collection shaft pipe 401 drives the spiral feeding screen 404 to push the silkworm from top to bottom. The high-pressure jet hole 402 sprays 45° downward-sloping high-pressure nitrogen to blow air onto the surface of the silkworm. The 0.2mm nylon bristles of the moving brush plate 405 and the stationary brush plate 406 work together to gently brush the wrinkles and gaps of the silkworm, realizing the mechanical and airflow-based dual stripping of spore powder. A portion of the stripped spore powder enters the collection channel through the horizontal collection suction hole 403 and flows into the main collection pipe. 1001. After falling into the collection area through the micropores 503 of the spiral feeding screen 404, a portion of the silkworms are drawn into the main collection pipe 1001 by negative pressure. The silkworms in the front collection cylinder 4 enter the rear collection cylinder 5 through the feeding pipe 6. The conveying shaft 501 drives the spiral lifting screen 502 to push the silkworms from bottom to top. The high-pressure jet hole 402 of the rear collection cylinder 5 blows air again. The residual spore powder scattered to the bottom of the cylinder is drawn back into the main collection pipe 1001 through the auxiliary collection pipe 1002. The silkworms that have not been peeled are returned to the front collection cylinder 4 through the return pipe 7 for further processing, forming a cycle of collection. The spore powder collected by the main collection pipe 1001 and the auxiliary collection pipe 1002 enters the sieve box 9 under the conveying of the negative pressure fan 10. It is then screened by three levels of screens: 80 mesh, 150 mesh, and 200 mesh, to complete the coarse screening for impurity removal, the medium screening for separation, and the fine screening for purification, to obtain spore powder of different grades. After the silkworm spores have been peeled and collected in the final stage, the feed valve 407 is closed first, and the equipment is allowed to continue running for 5-10 minutes to complete the blowing and absorption of the residual spores in the cylinder. Then, the dual-head motor 201, the negative pressure fan 10 and the nitrogen storage tank 8 are closed in sequence. The discharge valve 504 at the bottom of the rear collection cylinder 5 is opened to discharge the treated silkworms. The discharge plate 920 of the sieve box 9 is opened to collect Beauveria bassiana spores of different grades. Meanwhile, considering the characteristics of Beauveria bassiana spore powder being fine in size and easily dispersed and leaked by airflow, this equipment is equipped with specialized sealing structures adapted to the working conditions at all points where leakage risks exist. Specifically, these include encapsulated sliding sealing strips installed at the sliding fit between frame 1 and horizontal vibrating collection frame 2, and between horizontal vibrating collection frame 2 and vertical vibrating collection frame 3; O-rings embedded in the end cover flange connection surfaces of front collection cylinder 4 and rear collection cylinder 5; double-lip rotating skeleton sealing strips fitted at the rotational fit between collection shaft tube 401, conveying shaft 501 and front collection cylinder 4 and rear collection cylinder 5; double-maze sealing strips installed on the mating surface of screen box 9; and sealing structures installed at the connection ports of feed pipe 6, return pipe 7, main collection pipe 1001, auxiliary collection pipe 1002, and corrugated metal connecting pipe 1003. This forms a closed-loop sealing protection system at all points, eliminating the risk of Beauveria bassiana spore powder dispersing and leaking outwards during equipment operation. This sealing system not only avoids dust pollution in the production environment caused by the diffusion of spore powder, fully complies with the environmental protection control requirements of pharmaceutical production, and achieves green and clean production, but also eliminates the health hazards of respiratory allergies and occupational exposure caused by operators inhaling spore powder, achieving zero pollution risk protection for production personnel.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A collection device of Beauveria bassiana spore powder of medicinal Bombyx Batryticatus, comprising a frame (1), characterized in that, Also includes: A horizontal vibration acquisition frame (2) is slidably connected to a frame (1). The frame (1) is provided with a horizontal drive mechanism that drives the horizontal vibration acquisition frame (2) to vibrate alternately with a first amplitude, a second amplitude and a third amplitude. The vertical vibration acquisition frame (3) is slidably connected to the horizontal vibration acquisition frame (2), and a vertical drive mechanism is provided between the two to drive the vertical vibration acquisition frame (3) to vibrate alternately with the fourth amplitude, the fifth amplitude and the sixth amplitude; Both the front and rear mining cylinders (4 and 5) are fixedly connected to the horizontal vibrating collection frame (2). A collection shaft tube (401) coaxial with the front mining cylinder (4) and a conveying shaft (501) coaxial with the rear mining cylinder (5) are rotatably connected to the vertical vibrating collection frame (3). High-pressure jet holes (402) are arrayed on the inner walls of both the front and rear mining cylinders (4 and 5). Collection suction holes (403) are arrayed on the inner wall of the collection shaft tube (401). From top to bottom, the outer periphery of the collection shaft tube (401) The front and rear collection cylinders (5) are sequentially equipped with a spiral feeding screen (404) and two moving brush plates (405). Two stationary brush plates (406) are fixedly installed on the inner wall of the front collection cylinder (4) at the positions corresponding to the two moving brush plates (405). A spiral lifting screen (502) is fixedly connected to the conveying shaft (501). Screening micro-holes (503) are arrayed on both the spiral feeding screen (404) and the spiral lifting screen (502). A feeding pipe (6) and a return pipe (7) are respectively connected between the front collection cylinder (4) and the rear collection cylinder (5). A nitrogen storage tank (8) is configured to deliver gas through a high-pressure jet nozzle (402); The negative pressure collection mechanism is configured to communicate with the collection suction hole (403) and the rear collection tube (5) to collect spores; The sieve box (9) is equipped with a sieving mechanism that enables three-stage sieving of spore powder.

2. The collecting apparatus for Beauveria bassiana spore powder of a medicinal Bombyx batryticatus according to claim 1, characterized in that, A microcontroller (101) is fixedly installed on the front end of the frame (1), a feed valve pipe (407) is connected to the top of the front mining cylinder (4), and a discharge valve (504) is connected to the bottom of the rear mining cylinder (5).

3. The collecting apparatus for Beauveria bassiana spore powder of a medicinal Bombyx batryticatus according to claim 1, characterized in that, The horizontal drive mechanism includes a dual-head motor (201) fixed on the frame (1). A horizontal eccentric wheel (202) is fixedly installed on one output shaft of the dual-head motor (201) and is connected to a first synchronous belt. Three first eccentric vibration parts (203) are arranged in an array on the horizontal eccentric wheel (202) along the circumferential direction. A follower roller (204) is rotatably connected to the horizontal vibration acquisition frame (2). The three first eccentric vibration parts (203) alternately abut against the follower roller (204), and the abutment stroke of the three first eccentric vibration parts (203) against the follower roller (204) is different. Two horizontal resonant springs (205) are installed between the horizontal vibration acquisition frame (2) and the frame (1). The acquisition shaft tube (401) and the conveying shaft (501) are both connected to the first synchronous belt.

4. The collection device for Beauveria bassiana spore powder of medicinal silkworm as described in claim 2, characterized in that, A tensioning sliding seat (102) is slidably connected to the frame (1), and a tensioning guide wheel (103) is rotatably connected to the tensioning sliding seat (102). A tensioning spring (104) is installed between the tensioning sliding seat (102) and the frame (1). Two prism shafts (105) are rotatably connected to the horizontal vibration acquisition frame (2). A second synchronous belt is driven between the two prism shafts (105). The tensioning guide wheel (103) and one prism shaft (105) are both driven by the first synchronous belt. The top of the acquisition shaft tube (401) and the conveying shaft (501) are both provided with shaft grooves with open tops. The two shaft grooves are slidably connected to the two prism shafts (105) respectively. The cross-sections of the shaft grooves and the prism shafts (105) are both regular hexagons.

5. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 3, characterized in that, The vertical drive mechanism includes a follower guide roller (301) rotatably connected to the horizontal vibration acquisition frame (2) and a vertical eccentric wheel (302) rotatably connected to the frame (1). The other output end of the dual-head motor (201) and the vertical eccentric wheel (302) are both equipped with linkage bevel gears. The two linkage bevel gears mesh orthogonally. Along the circumferential direction, the vertical eccentric wheel (302) is arrayed with three second eccentric vibration parts (303). The three second eccentric vibration parts (303) alternately abut against the follower guide roller (301), and the abutment stroke of the three second eccentric vibration parts (303) against the follower guide roller (301) is different. The bottom surface of the vertical vibration acquisition frame (3) is equipped with two vertical re-vibration springs (304). The other end of the two vertical re-vibration springs (304) is fixedly connected to the horizontal vibration acquisition frame (2).

6. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 1, characterized in that, Both the front and rear extraction cylinders (4 and 5) are provided with annular gas chambers (408) that are connected to the high-pressure jet hole (402). The outlet port of the nitrogen storage tank (8) is connected to a corrugated gas delivery pipe. Both annular gas chambers (408) are fixedly connected to the corrugated gas delivery pipe.

7. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 1, characterized in that, The negative pressure collection mechanism includes a negative pressure fan (10) fixedly mounted on the frame (1), a main collection pipe (1001) fixedly connected to the bottom of the front collection cylinder (4), a collection flow channel is opened inside the collection shaft pipe (401), the bottom end of the collection flow channel is connected to the main collection pipe (1001), the collection suction hole (403) is connected to the collection flow channel, the bottom of the rear collection cylinder (5) is connected to the auxiliary collection pipe (1002), the other end of the auxiliary collection pipe (1002) is connected to the main collection pipe (1001), the air inlet port of the negative pressure fan (10) is connected to the corrugated metal connecting pipe (1003), the other end of the corrugated metal connecting pipe (1003) is connected to the main collection pipe (1001), and the air outlet port of the negative pressure fan (10) is connected to the screen box (9).

8. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 1, characterized in that, The screening mechanism includes three screening frames (910) installed sequentially in the screen box (9) along the airflow direction. Each of the three screening frames (910) is equipped with a screen, and the screen aperture of the three screens decreases in the airflow direction. The bottom of the screen box (9) and the positions of the three adjacent screening frames (910) are all fitted with a discharge plate (920). The air outlet of the screen box (9) is connected to an exhaust valve (930).

9. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 1, characterized in that, The surfaces of the moving brush plate (405) and the stationary brush plate (406) are both arrayed with nylon brush filaments, the diameter of which is 0.2 mm. The spiral feeding screen blade (404) and the spiral lifting screen blade (502) have opposite spiral directions, and both are made of soft polyurethane material.

10. The collection device for Beauveria bassiana spore powder of medicinal silkworm according to claim 1, characterized in that, The high-pressure jet hole (402) is inclined downward and the angle between the axis of the high-pressure jet hole (402) and the horizontal plane is 45°, while the collection suction hole (403) is horizontal.

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