Blade conveyor with multiple impurity removal functions

Abstract

This invention discloses a leaf filament conveying device with multiple impurity removal functions, comprising a frame (1), on which a first side plate and a second side plate are arranged opposite to each other. A material discharge device and an air separation mechanism (5) are provided on the first side plate. The material discharge device is located above the air separation mechanism (5). A pitching vibration conveying mechanism (4) is provided between the first side plate and the second side plate. A horizontal vibration screening mechanism (6) and an air drying mechanism (7) are provided inside the frame (1). The feed end of the horizontal vibration screening mechanism (6) is located below the discharge end of the pitching vibration conveying mechanism (4), and the air drying mechanism (7) is located directly below the horizontal vibration screening mechanism (6). This invention can comb, remove impurities, and sort leaf filaments, and can also prevent mesh clogging, ensuring working efficiency.

Description

Technical Field

[0001] This invention relates to a blade conveying device, and more particularly to a blade conveying device with multiple impurity removal functions. Background Technology

[0002] In the tobacco processing industry, current screening devices with impurity removal functions typically use screens for this purpose. However, screens can only screen granular materials. They cannot effectively sort or screen filamentous or flaky leaf fibers, or tangled leaf fibers, or effectively remove impurities from them. Furthermore, current screening devices with impurity removal functions are prone to clogging the mesh, requiring regular cleaning of the filamentous material and leading to timed shutdowns, which affects work efficiency. In addition, current screening devices with impurity removal functions cannot perform processes such as heating or cooling on the leaf fibers, which would affect the quality of the leaf fibers. Summary of the Invention

[0003] The purpose of this invention is to provide a blade conveying device with multiple impurity removal functions to solve the technical problems in the prior art. It can comb, remove impurities and sort blades, and can prevent mesh clogging and ensure working efficiency.

[0004] This invention provides a leaf filament conveying device with multiple impurity removal functions, including a frame. The frame has a first side plate and a second side plate arranged opposite to each other. The first side plate is provided with a material discharge device and an air separation mechanism. The material discharge device is located above the air separation mechanism. A pitch vibration conveying mechanism is provided between the first side plate and the second side plate. The frame is provided with a horizontal vibration screening mechanism and an air drying mechanism. The feed end of the horizontal vibration screening mechanism is located below the discharge end of the pitch vibration conveying mechanism. The air drying mechanism is located directly below the horizontal vibration screening mechanism.

[0005] Preferably, the feeding device includes a blade raw material hopper and a quantitative feeding mechanism. The bottom end of the blade raw material hopper is connected to the top end of the quantitative feeding mechanism. The discharge port at the bottom of the quantitative feeding mechanism is located at the feed end of the pitching vibration conveying mechanism. A grid storage box is fixed on the frame. The grid storage box is located below the discharge end of the horizontal vibration screening mechanism.

[0006] Preferably, the quantitative feeding mechanism includes a cylindrical valve chamber and a combing motor. The top of the cylindrical valve chamber is connected to the bottom of the blade raw material hopper. A blade discharge channel is opened at the bottom of the cylindrical valve chamber. Fixed comb teeth are fixedly provided on one side of the blade discharge channel inside the cylindrical valve chamber. The top of the fixed comb teeth is provided with a bent portion. The combing motor is fixed on the outer wall of one end of the cylindrical valve chamber. The output shaft of the combing motor is concentrically arranged with the center of the cylindrical valve chamber. Multiple combing plates are equally spaced along the circumference on the output shaft of the combing motor. A rotating comb tooth is fixed at the end of each combing plate. The rotating comb tooth and the fixed comb tooth are staggered.

[0007] Preferably, the air separation mechanism includes a high-pressure air source, a pressure regulating valve, and an air distributor. The high-pressure air source is fixed to the outer wall of the first side plate. The output port of the high-pressure air source is connected to the pressure regulating valve. The output port of the pressure regulating valve is connected to the air distributor. The air distributor includes an air chamber fitted into the first side plate. An array of jet nozzles is provided on the surface of the air chamber facing the second side plate.

[0008] Preferably, the pitch vibration transmission mechanism includes a semi-enclosed box and a vibration mechanism. The vibration mechanism includes a reduction gearbox, a drive motor, and a turntable. The drive motor is connected to the input shaft end of the reduction gearbox. One end of the output shaft of the reduction gearbox is fixedly connected to the turntable. One side of the turntable is rotatably connected to a connecting rod via a pin. The feed end of the semi-enclosed box is rotatably connected to the inner side of the first side plate and the second side plate via pins on both sides. The top end of the connecting rod is rotatably connected to a bracket fixed in the middle of the bottom surface of the semi-enclosed box via a pin.

[0009] Preferably, the semi-enclosed box is provided with several parallel partitions, and each partition has a Y-shaped gathering baffle formed at one end near the horizontal vibration screening mechanism. The discharge end of the semi-enclosed box is fixed with a grooved guide rail, and multiple T-shaped sliders are embedded in the grooved guide rail. Each T-shaped slider is threaded with a locking screw, and one end of the locking screw abuts against the opening of the Y-shaped gathering baffle.

[0010] Preferably, the horizontal vibration screening mechanism includes a horizontal guide rail pair and a rectangular base box. Two parallel horizontal guide rail pairs are fixed inside the frame. The bottom of the rectangular base box is fixedly connected to a slider on the horizontal guide rail pair. Several parallel trapezoidal isolation rails are fixed inside the rectangular base box. A sorting groove is formed between two adjacent trapezoidal isolation rails. Screening mesh holes are opened on the bottom surface of the sorting groove. A grooved wheel is fixedly connected to the other end of the output shaft of the gearbox. A vertical support shaft is fixed in the middle of the bottom surface of the frame. A convex shaft is fixed at the bottom of the feed end of the rectangular base box. A grooved swing rod is movably connected to the convex shaft. The top end of the vertical support shaft rotates and passes through the middle of the grooved swing rod. The other end of the grooved swing rod is adapted to be embedded in the grooved wheel.

[0011] Preferably, the wind-powered drying mechanism 7 includes an annular pipe network and nozzles. The annular pipe network is fixed at the bottom of the horizontal guide rail pair, and a plurality of nozzles are evenly distributed at the top of the annular pipe network. The outlet of the high-pressure air source is connected to a vortex tube, and the hot air outlet of the vortex tube is connected to the annular pipe network.

[0012] Preferably, an exhaust port is provided on the second side plate, the center of the exhaust port is concentric with the opening center of the air distributor, a dust collection hopper is fixedly connected to the outside of the exhaust port, and a dust net is fastened to the opening side cover of the dust collection hopper.

[0013] Preferably, a sealing cover is hinged to the top of the blade raw material hopper, and pneumatic push rods are fixed on both sides of the blade raw material hopper. The top of the pneumatic push rods is hinged to both sides of the sealing cover. A three-way valve is fixed on the blade raw material hopper, and the high-pressure air source is connected to both pneumatic push rods simultaneously through the three-way valve.

[0014] Compared with the prior art, the present invention uses the cooperation of rotating and fixed comb teeth in the quantitative feeding mechanism to peel off the clumps of leaf filaments in the raw material hopper into a loose state. After the rotating and fixed comb teeth interweave, the peeled leaf filaments are quantitatively and continuously conveyed to the pitching vibration conveying mechanism. After passing through air separation and vibration in sequence, the leaf filaments are impurities removed and sorted.

[0015] The loose blades during the falling process are initially separated by a wind separation mechanism that evenly distributes air to remove impurities. Then, the blades are further shaken and dispersed by a vibration mechanism. Finally, a horizontal vibration screening mechanism is used to remove impurities by vibrating the blades in a horizontal state. Blades that do not meet the specifications pass through the mesh of the screen, while blades that meet the specifications enter the grid storage box.

[0016] A wind-powered drying mechanism is used to further screen the blades of the same density. The wind-powered drying mechanism is turned on periodically to prevent the blades from getting stuck in the screening mesh. The wind-powered drying mechanism is connected to a vortex tube with temperature control function, which can accurately control the temperature during the vibration and transmission of the blades, and avoid the quality reduction of the blades due to temperature during transportation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one side of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the other side of the present invention;

[0019] Figure 3 This is a schematic diagram of the feed end of the present invention;

[0020] Figure 4 This is a bottom-view structural diagram of the present invention;

[0021] Figure 5 This is a cross-sectional view of the present invention;

[0022] Figure 6 This is a front structural diagram of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the leaf filament raw material hopper and the quantitative feeding mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the vibration mechanism of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Blade raw material hopper; 3. Quantitative feeding mechanism; 4. Pitch vibration transmission mechanism; 5. Air separation mechanism; 6. Horizontal vibration screening mechanism; 7. Air drying mechanism; 8. Grille storage box; 9. Vibration mechanism; 10. Electrical cabinet; 11. Horizontal guide rail pair; 12. Vertical support shaft; 13. Exhaust vent; 14. Dust collection hopper; 15. Dust screen; 16. Sealing cover; 17. Pneumatic push rod; 18. Three-way valve; 19. Motor driver; 20. Support rod; 21. Observation window; 22. Scale; 31. Cylindrical valve chamber; 32. Blade discharge channel; 33. Fixed comb teeth; 34. 35. Bending section; 36. Combing motor; 37. Combing plate; 48. Rotating comb teeth; 49. Semi-enclosed box; 40. Serrated top surface; 412. Grooved guide rail; 413. T-shaped slider; 414. Locking screw; 415. Positioning protrusion; 416. Positioning groove; 42. Partition; 421. Lower serration; 422. Y-shaped gathering baffle; 51. High-pressure air source; 52. Pressure regulating valve; 53. Air distributor; 531. Air chamber; 532. Air jet array; 61. Rectangular base box; 62. Trapezoidal isolation barrier; 63. Sorting groove; 64. Screening mesh; 65. Convex shaft; 66. Grooved swing rod; 71. Annular pipe network; 72. Nozzle; 73. Vortex tube; 91. Gearbox; 92. Drive motor; 93. Turntable; 94. Connecting rod; 95. Grooved wheel; 96. Support. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] Embodiments of the present invention: such as Figures 1-8 As shown, a leaf filament conveying device with multiple impurity removal functions includes a frame 1. The frame 1 has a first side plate and a second side plate arranged opposite to each other. Both the first side plate and the second side plate are located at the feeding end of the frame 1. The first side plate is provided with a discharge device and an air separation mechanism 5. The discharge device is located directly above the air separation mechanism 5. A pitching vibration conveying mechanism 4 is provided between the first side plate and the second side plate. The frame 1 is provided with a horizontal vibration screening mechanism 6 and an air drying mechanism 7. The feeding end of the horizontal vibration screening mechanism 6 is located below the discharging end of the pitching vibration conveying mechanism 4. The air drying mechanism 7 is located directly below the horizontal vibration screening mechanism 6.

[0028] The feeding device is used to break up the tobacco leaves and distribute them evenly. The air separation mechanism 5 is used to sort the discharged material, separating impurities, tobacco leaves, and tobacco stems by using air force. The air drying mechanism 7 can solve the problem of tobacco leaves clogging the mesh and also dry the tobacco leaves.

[0029] In one specific embodiment, the feeding device includes a blade raw material hopper 2 and a quantitative feeding mechanism 3. The bottom end of the blade raw material hopper 2 is connected to the top end of the quantitative feeding mechanism 3. The discharge port at the bottom of the quantitative feeding mechanism 3 is located above the feed end of the pitch vibration conveying mechanism 4. A grid storage box 8 is fixed on the frame 1. The grid storage box 8 is located below the discharge end of the horizontal vibration screening mechanism 6.

[0030] In this embodiment, the top of the first side plate is fixedly connected to the top of the second side plate by two parallel support rods 20, and the blade raw material hopper 2 is snapped and fixed between the two support rods 20. Through this structural design, the position of the material dropping device on the two support rods 20 can be adjusted according to the needs, thereby adjusting the dropping position.

[0031] Furthermore, the quantitative feeding mechanism 3 includes a cylindrical valve chamber 31 and a combing motor 35. The top of the cylindrical valve chamber 31 is connected to the bottom of the blade raw material hopper 2. A blade discharge channel 32 is opened at the bottom of the cylindrical valve chamber 31. Fixed comb teeth 33 are fixedly provided on the inner wall of the cylindrical valve chamber 31 on one side of the blade discharge channel 32. A bending part 34 is provided at the top of the fixed comb teeth 33, and the bending part 34 faces the side where the blade discharge channel 32 is located. The combing motor 35 is fixed on the outer wall of one end of the cylindrical valve chamber 31. The output shaft of the combing motor 35 is concentrically arranged with the center of the cylindrical valve chamber 31. Multiple combing plates 36 are evenly spaced along the circumference on the output shaft of the combing motor 35. A rotating comb tooth 37 is fixedly provided at the end of each combing plate 36. The rotating comb tooth 37 and the fixed comb tooth 33 are arranged alternately.

[0032] When the quantitative feeding mechanism 3 peels off the outer surface of the clump or flocculent leaf filaments, the combing motor 35 drives the combing plate 36 to rotate. The rotating comb teeth 37 on the combing plate 36 quantitatively peel off a set amount of leaf filaments from the surface of the clump or flocculent leaf filaments. Then, the rotating comb teeth 37 move the quantitatively peeled leaf filaments to the leaf filament discharge channel 32. When the rotating comb teeth 37 intersect with the fixed comb teeth 33 and the bending part 34, the quantitative amount of leaf filaments obtained by the rotating comb teeth 37 from the bottom of the leaf filament raw material hopper 2 is intercepted by the fixed comb teeth 33 and the bending part 34. The intercepted leaf filaments fall through the leaf filament discharge channel 32 and are then preliminarily screened and impurity removed by the air separation mechanism 5.

[0033] Furthermore, the air separation mechanism 5 includes a high-pressure air source 51, a pressure regulating valve 52, and an air distributor 53. The high-pressure air source 51 is fixed on the outer wall of the first side plate. The output port of the high-pressure air source 51 is connected to the input port of the pressure regulating valve 52 through an air pipe. The output port of the pressure regulating valve 52 is connected to the input port of the air distributor 53 through an air pipe. The air distributor 53 includes an air chamber 531 fitted into the first side plate. An array of jet nozzles 532 is provided on the surface of the air chamber 531 facing the second side plate.

[0034] As mentioned above, the high-pressure air source 51 is a high-pressure air tank or an air compressor or a combination of the two, which can continuously generate high-pressure airflow. After the pressure of the high-pressure airflow is regulated by the pressure regulating valve 52, it is introduced into the air distributor 53. The high-pressure airflow disperses the pressure in the air chamber 531, and then the airflow is sprayed through the jet nozzle array 532 along the horizontal direction above the feed end of the pitch vibration transmission mechanism 4 to perform preliminary sorting and impurity removal on the blades during the falling process.

[0035] Heavier impurities fall quickly to the side of the pitch vibration transmission mechanism 4 closest to the first side plate, while blades that meet quality requirements fall to the middle of the pitch vibration transmission mechanism 4, and lighter blades fall to the side of the pitch vibration transmission mechanism 4 closest to the second side plate.

[0036] Furthermore, the pitch vibration transmission mechanism 4 includes a semi-enclosed box 41 and a vibration mechanism 9. The vibration mechanism 9 includes a reduction gearbox 91, a drive motor 92, and a turntable 93. The drive motor 92 is connected to the input shaft end of the reduction gearbox 91. One end of the output shaft of the reduction gearbox 91 is fixedly connected to the turntable 93. One side of the turntable 93 is rotatably connected to a connecting rod 94 via a pin. The feed end of the semi-enclosed box 41 is rotatably connected to the inner side of the first side plate and the second side plate via pins on both sides. The top end of the connecting rod 94 is rotatably connected to a bracket 96 fixed in the middle of the bottom surface of the semi-enclosed box 41 via a pin.

[0037] The function of the pitch vibration conveying mechanism 4 is to vibrate the blades falling onto its top surface up and down. During the vibration process, the blades gradually move from the feed end to the discharge end of the semi-enclosed box 41 under the action of gravity. During the vibration, the blades undulate up and down. At this time, the high-pressure airflow disperses the pressure in the air chamber 531, and then the airflow is sprayed horizontally above the head end of the pitch vibration conveying mechanism 4 through the jet nozzle array 532, performing the preliminary sorting and impurity removal of the falling blades as described above. When the pitch vibration conveying mechanism 4 is working, the drive motor 92 drives the turntable 93 to rotate through the reduction gearbox 91, thereby driving the semi-enclosed box 41 to pitch through the connecting rod 94.

[0038] It should be noted that the semi-enclosed box 41 is a box structure with the bottom and four sides closed and the top open. A connecting shaft is formed at the edge of the turntable 93, and one end of the connecting rod 94 is rotatably connected to the connecting shaft. The turntable 93 is a specific structure used in this embodiment. Those skilled in the art can also replace it with other structures that can make the semi-enclosed box 41 vibrate up and down, such as replacing the turntable 93 with a cam.

[0039] Furthermore, the semi-enclosed box 41 is provided with several parallel partitions 42. The top surface of the semi-enclosed box 41 is provided with a serrated top surface 411, and the bottom side of the partitions 42 is provided with lower serrations 421, which match the serrated top surface 411. Each partition 42 has a Y-shaped gathering baffle 422 formed at one end near the horizontal vibrating screening mechanism 6. The discharge end of the semi-enclosed box 41 is fixed with a grooved guide rail 412, and multiple T-shaped sliders 413 are embedded in the grooved guide rail 412. Each T-shaped slider 413 is threaded with a locking screw 414, and one end of the locking screw 414 abuts against the opening of the Y-shaped gathering baffle 422. To prevent the partitions 42 from misaligning, it is preferable to provide multiple positioning protrusions 415 on the inner wall of the side plate at the feed end of the semi-enclosed box 41, and a positioning groove 416 at the end of each partition 42.

[0040] Because the sorting grade of the blades has specific requirements—for example, some blades need to be sorted into five grades, while others need to be sorted into ten grades—four or nine parallel partitions 42 need to be installed on the top surface of the semi-enclosed box 41, which has a set width. To ensure efficient installation, a grooved guide rail 412 is fixed to the front end of the semi-enclosed box 41. A T-shaped slider 413 is fitted inside the grooved guide rail 412. A locking screw 414 is threaded onto the top side of the T-shaped slider 413. Tightening the locking screw 414 causes the slider to abut against a Y-shaped abutment at its front end. The baffle 422 presses the partition 42 against the rear wall of the semi-enclosed box 41. At this time, the serrated top surface 411 of the top surface of the semi-enclosed box 41 is adapted to the lower serration 421 of the bottom side of the partition 42, thereby fixing the partition 42 firmly and quickly to the top surface of the semi-enclosed box 41. In addition, because the pitch vibration transmission mechanism 4 performs pitch vibration, a serrated top surface 411 is provided on the top surface of the semi-enclosed box 41, which can effectively promote the transmission of the blade from the first end of the semi-enclosed box 41 to the last end of the semi-enclosed box 41, until it falls into the horizontal vibration screening mechanism 6 under the guidance of the Y-shaped gathering baffle 422.

[0041] Furthermore, the horizontal vibration screening mechanism 6 includes a horizontal guide rail pair 11 and a rectangular base box 61. Two parallel horizontal guide rail pairs 11 are fixed inside the frame 1. The bottom of the rectangular base box 61 is fixedly connected to the slider on the horizontal guide rail pair 11. Several parallel trapezoidal isolation bars 62 are fixed inside the rectangular base box 61. A sorting groove 63 is formed between two adjacent trapezoidal isolation bars 62. The openings of two adjacent Y-shaped gathering baffles 422 are located in the middle of the top of the sorting groove 63. Screening mesh holes 64 are opened on the bottom surface of the sorting groove 63. A grooved wheel 95 is fixedly connected to the other end of the output shaft of the gearbox 91. A vertical support shaft 12 is fixed in the middle of the bottom surface of the frame 1. A convex shaft 65 is fixed at the bottom of the feed end of the rectangular base box 61. A grooved swing rod 66 is movably connected to the convex shaft 65. The top end of the vertical support shaft 12 is rotatably inserted into the middle of the grooved swing rod 66. The other end of the grooved swing rod 66 is adapted to be embedded in the grooved wheel 95.

[0042] When the grooved wheel 95 rotates, it drives the other end of the grooved swing rod 66 to swing periodically. This changes the swing direction of the grooved swing rod 66 through the vertical support shaft 12, and drives the rectangular bottom box 61 to reciprocate along the horizontal guide rail pair 11 through the convex shaft 65. In order to ensure that the pitch vibration transmission mechanism 4 and the horizontal vibration screening mechanism 6 work synchronously, the device has a turntable 93 fixed at one end of the output shaft of the gearbox 91 and a grooved wheel 95 fixed at the other end. In this way, the grooved wheel 95 and the turntable 93 rotate synchronously. When the turntable 93 supports the pitch vibration transmission mechanism 4 to vibrate up and down once through the connecting rod 94, the grooved wheel 95 drives the rectangular bottom box 61 to swing horizontally once through the grooved swing rod 66 and the convex shaft 65. In this way, a transmission system simultaneously drives the pitch vibration transmission mechanism 4 and the horizontal vibration screening mechanism 6, and makes them linked and cooperate with each other, so as to effectively transmit the blades on the top surface of the semi-enclosed box 41 to the rectangular bottom box 61. It should be noted that the two horizontal guide rail pairs 11 are set in a direction perpendicular to the movement direction of the blade filament, with the direction parallel to the movement direction of the blade filament being the front-back direction and the direction perpendicular to the movement direction of the blade filament being the left-right direction. The swing of the rectangular base box 61 is a left-right swing.

[0043] Furthermore, the wind-powered drying mechanism 7 includes an annular pipe network 71 and nozzles 72. The annular pipe network 71 is fixed at the bottom of the horizontal guide rail pair 11, and several nozzles 72 are evenly distributed at the top of the annular pipe network 71. The outlet of the high-pressure air source 51 is connected to a vortex tube 73, and the hot air outlet of the vortex tube 73 is connected to the annular pipe network 71.

[0044] In this process, the high-pressure airflow from the high-pressure air source 51 generates a high-temperature airflow at one end and a low-temperature airflow at the other end after passing through the vortex tube 73. The high-temperature airflow is then introduced into the annular pipe network 71 and sprayed onto the bottom side of the horizontal vibrating screening mechanism 6 through the evenly distributed upper spray pipes 72 at its top. Therefore, without the need for a heating mechanism, the blades on the sorting tank 63 can be dried and dehumidified by the screening mesh 64. In addition, the intermittent introduction of high-pressure airflow into the annular pipe network 71 can also blow out the blades embedded in the screening mesh 64, preventing the blades from clogging the screening mesh 64.

[0045] Furthermore, an electrical cabinet 10 is fixed on the outer wall of the first side panel. Two motor drivers 19 are installed inside the electrical cabinet 10. The output terminals of the two motor drivers 19 are electrically connected to the combing motor 35 and the drive motor 92, respectively.

[0046] Among them, the combing motor 35 and the drive motor 92 are variable frequency motors or servo motors, and the two motor drivers 19 are frequency converters or servo drive units. They can control the speed of the combing motor 35 or the drive motor 92 by changing the frequency. Therefore, the combing motor 35 can drive the rotating comb teeth 37 to peel a certain amount of leaf filaments to the leaf filament discharge channel 32 at the optimal speed. The speed of the drive motor 92 is controlled by the motor driver 19 which is electrically connected to it. The speed of the turntable 93 and the groove wheel 95 is adjusted by the reduction gearbox 91. At the same time, the up and down vibration frequency of the pitch vibration transmission mechanism 4 and the horizontal vibration frequency of the horizontal vibration screening mechanism 6 are controlled to vibrate the leaf filaments up and down and horizontally at the optimal frequency.

[0047] Furthermore, an exhaust port 13 is provided on the second side plate. The center of the exhaust port 13 is concentric with the opening center of the air distributor 53. A dust collection hopper 14 is fixedly connected to the outside of the exhaust port 13. A dust net 15 is fastened to the opening side cover of the dust collection hopper 14.

[0048] When the air distributor 53 sprays out the airflow for impurity removal through the nozzle array 532, after the airflow passes the top of the head end of the pitch vibration transmission mechanism 4, the residual air carries the dust into the exhaust port 13. Then the dust passes through the dust net 15 and falls into the dust collection hopper 14 for collection. The dust net 15 blocks light impurities, and the light impurities fall into the groove formed by the partition 42 on the side near the dust net 15.

[0049] Furthermore, a sealing cover 16 is hinged to the top of the blade raw material hopper 2, and pneumatic push rods 17 are fixed on both sides of the blade raw material hopper 2. The top of the pneumatic push rods 17 is hinged to both sides of the sealing cover 16. A three-way valve 18 is fixed on the blade raw material hopper 2, and the high-pressure air source 51 is connected to the two pneumatic push rods 17 simultaneously through the three-way valve 18.

[0050] The sealing cover 16 is used to seal the top opening of the blade raw material hopper 2. The three-way valve 18 can be a solenoid valve or a manual valve, which can simultaneously connect the air inlet ports of the two pneumatic push rods 17 to control their extension and retraction. When the pneumatic push rods 17 extend forward, they push up the sealing cover 16 to facilitate the addition of blade raw materials. When the pneumatic push rods 17 retract, they seal the sealing cover 16 at the top opening of the blade raw material hopper 2. An observation window 21 is provided on the side wall of the blade raw material hopper 2, which allows the staff to observe the amount of blade raw materials inside from the outside of the blade raw material hopper 2. A scale 22 is provided on the side of the observation window 21, which allows the staff to accurately know the remaining amount of blade raw materials in the blade raw material hopper 2.

[0051] The working principle of this invention: Before processing, the leaf filaments are in clumps or flocculents. At this time, the leaf filaments stick together and entangle with each other, making it difficult to sieve them. Therefore, the sticky raw leaf filaments contain leaf stems and small fragments of leaves in a fragmented state. The leaf filaments also contain dust on their surface and dusty leaf filaments generated during the cutting process. The presence of these impurities will affect the quality of the leaf filaments.

[0052] When this device is working, the aforementioned untreated, clump-like or flocculent leaf filaments are placed in the leaf filament raw material hopper 2. The quantitative feeding mechanism 3 at the bottom of the hopper gradually peels the clump-like or flocculent leaf filaments from their bottom surface. As the peeled leaf filaments fall, the air separation mechanism 5 sprays out a horizontal airflow. The airflow blows the falling leaf filaments from one side of the pitching vibration conveyor mechanism 4 to the other side. During this process, heavier leaf stems or other solid particles fall first to the top of the pitching vibration conveyor mechanism 4 on the side closer to the air separation mechanism 5. Leaf filaments that meet the standards fall to the middle of the pitching vibration conveyor mechanism 4. As for fragmented or dried leaf filaments, as well as dust and powdery leaf filaments, they fall to the top of the pitching vibration conveyor mechanism 4 on the side farther from the air separation mechanism 5. This completes the initial impurity removal and sorting.

[0053] After initial impurity removal and sorting, the leaf filaments are gradually conveyed from the beginning to the end during the pitching vibration of the pitching vibration conveyor 4, and then vibrate and fall onto the top surface of the horizontal vibration screening mechanism 6. The horizontal vibration screening mechanism 6 continues to vibrate and screen the leaf filaments after initial sorting, and further screens and removes leaf filaments that do not meet the length and width requirements. Then, the leaf filaments that meet the quality requirements can be further advanced into the grid storage box 8 for classified storage during the vibration process.

[0054] During the vibrating screening process of the horizontal vibrating screening mechanism 6, the wind-powered drying mechanism 7 located at its bottom side is continuously or intermittently started. When the wind-powered drying mechanism 7 is intermittently started, it can blow out the blades that are stuck on the screen holes of the horizontal vibrating screening mechanism 6 to prevent the blades from clogging the screen holes. When the wind-powered drying mechanism 7 is continuously started, if the airflow blown out is cold, it can cool down the blades. If the airflow blown out is hot, it can dry and remove water from the blades.

[0055] The above description, based on the embodiments shown in the figures, details the structure, features, and effects of the present invention. The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified to have equivalent changes, that do not exceed the spirit covered by the specification and figures, should be within the protection scope of the present invention.

Claims

1. A cut tobacco conveying device having multiple decontamination functions, comprising a frame (1), characterised in that: The rack (1) is provided with oppositely arranged first and second side plates, the first side plate is provided with a blanking device and a winnowing mechanism (5), the blanking device is located above the winnowing mechanism (5), a pitch vibration conveying mechanism (4) is arranged between the first and second side plates, a horizontal vibration screening mechanism (6) and a wind drying mechanism (7) are arranged in the rack (1), the feed end of the horizontal vibration screening mechanism (6) is located below the discharge end of the pitch vibration conveying mechanism (4), and the wind drying mechanism (7) is arranged directly below the horizontal vibration screening mechanism (6); The pitch vibration conveying mechanism (4) comprises a semi-enclosed box (41) and a vibration mechanism (9), the vibration mechanism (9) comprises a speed reducer (91), a driving motor (92) and a rotating disc (93), the driving motor (92) is connected with an input shaft end of the speed reducer (91), one end of an output shaft of the speed reducer (91) is fixedly connected with the rotating disc (93), one side of the rotating disc (93) is rotatably connected with a connecting rod (94) through a pin shaft, and the feed end of the semi-enclosed box (41) is rotatably connected to the inner sides of the first and second side plates through pin shafts on the two sides of the semi-enclosed box (41); and the top end of the connecting rod (94) is rotatably connected with a support (96) fixedly arranged on the middle part of the bottom surface of the semi-enclosed box (41) through a pin shaft. A plurality of parallel partitions (42) are arranged in the semi-enclosed box (41), one end of each partition (42) close to the horizontal vibration screening mechanism (6) is formed with a Y-shaped gathering baffle (422), a groove-shaped guide rail (412) is fixed to the discharge end of the semi-enclosed box (41), a plurality of T-shaped sliding blocks (413) are embeddedly connected in the groove-shaped guide rail (412), a locking screw (414) is threadedly connected to each T-shaped sliding block (413), and one end of the locking screw (414) abuts against the opening of the Y-shaped gathering baffle (422). The horizontal vibration screening mechanism (6) comprises horizontal guide rail pairs (11) and a rectangular bottom box (61), two horizontal guide rail pairs (11) are fixedly arranged in parallel in the rack (1), the bottom of the rectangular bottom box (61) is fixedly connected with sliding blocks on the horizontal guide rail pairs (11), a plurality of parallel trapezoidal isolation fences (62) are fixedly arranged in the rectangular bottom box (61), an arrangement groove (63) is formed between two adjacent trapezoidal isolation fences (62), a screening mesh (64) is arranged on the bottom surface of the arrangement groove (63), the other end of the output shaft of the speed reducer (91) is fixedly connected with a recessed wheel (95), a vertical support shaft (12) is fixedly arranged in the middle part of the bottom surface of the rack (1), a convex shaft (65) is fixedly arranged at the bottom of the feed end of the rectangular bottom box (61), a groove-shaped swing lever (66) is movably connected to the convex shaft (65), the top end of the vertical support shaft (12) is rotatably inserted into the middle part of the groove-shaped swing lever (66), and the other end of the groove-shaped swing lever (66) is embedded into the recessed wheel (95).

2. The cut-filler conveying device with multiple functions of removing impurities according to claim 1, characterized in that: The blanking device comprises a cut tobacco raw material hopper (2) and a quantitative feeding mechanism (3), the bottom end of the cut tobacco raw material hopper (2) is communicated with the top end of the quantitative feeding mechanism (3), and the discharge port at the bottom of the quantitative feeding mechanism (3) is located at the feeding end of the pitching vibration conveying mechanism (4); a grating storage box (8) is fixed on the rack (1) and located below the discharge end of the horizontal vibration screening mechanism (6).

3. The cut-filler conveying device with multiple decontamination functions according to claim 2, characterized in that: The quantitative feeding mechanism (3) comprises a cylinder valve cavity (31) and a combing motor (35), the top of the cylinder valve cavity (31) is communicated with the bottom of the cut tobacco raw material hopper (2), the bottom of the cylinder valve cavity (31) is provided with a cut tobacco discharge channel (32), a fixed comb tooth (33) is fixed on one side of the cut tobacco discharge channel (32) in the cylinder valve cavity (31), the top end of the fixed comb tooth (33) is provided with a bending part (34), the combing motor (35) is fixed on the outer wall of one end of the cylinder valve cavity (31), the output shaft of the combing motor (35) is concentrically arranged with the center of the cylinder valve cavity (31), a plurality of combing plates (36) are arranged on the output shaft of the combing motor (35) at equal intervals in the circumferential direction, and the end of each combing plate (36) is fixed with a rotating comb tooth (37); the rotating comb tooth (37) and the fixed comb tooth (33) are arranged in a staggered manner.

4. The cut-filler conveying device with multiple functions of removing impurities according to claim 2, characterized in that: The winnowing mechanism (5) comprises a high-pressure gas source (51), a pressure regulating valve (52) and a uniform air distributor (53), the high-pressure gas source (51) is fixed on the outer wall of the first side plate, the output port of the high-pressure gas source (51) is connected with the pressure regulating valve (52), the output port of the pressure regulating valve (52) is connected with the uniform air distributor (53), and the uniform air distributor (53) comprises a gas chamber (531) embedded on the first side plate, and an array of air nozzles (532) is arranged on the surface of the gas chamber (531) facing the second side plate.

5. The cut-filler conveying device with multiple decontamination functions according to claim 4, characterized in that: The air drying mechanism (7) comprises an annular pipe network (71) and a spray pipe (72), the annular pipe network (71) is fixed on the bottom of the horizontal guide rail pair (11), the top end of the annular pipe network (71) is uniformly provided with a plurality of spray pipes (72), the outlet of the high-pressure gas source (51) is communicated with a vortex pipe (73), and the hot gas outlet of the vortex pipe (73) is communicated with the annular pipe network (71).

6. The cut-filler conveying device with multiple decontamination functions according to claim 5, characterized in that: An air outlet (13) is formed in the second side plate, the center of the air outlet (13) is concentrically arranged with the opening center of the uniform air distributor (53), the outer side of the air outlet (13) is fixedly connected with a dust collection hopper (14), and the opening side of the dust collection hopper (14) is buckled with a dust screen (15).

7. The cut-filler conveying device with multiple decontamination functions according to claim 6, characterized in that: The top of the tobacco shred raw material hopper (2) is hingedly connected with a sealing cover (16), both sides of the tobacco shred raw material hopper (2) are fixed with pneumatic push rods (17), the top of the pneumatic push rods (17) is hingedly connected with both sides of the sealing cover (16), a three-way valve (18) is fixed on the tobacco shred raw material hopper (2), the high-pressure air source (51) is connected with the two pneumatic push rods (17) through the three-way valve (18).

Images