Conveyor with auxiliary support device for tobacco leaf purchasing stations

Abstract

This invention discloses a conveyor with auxiliary support device for tobacco leaf purchasing stations, including a support platform. The bottom of the support platform is equipped with a support mechanism for supporting the platform and adjusting its level. A transmission rod is rotatably connected to the top center of the support platform, and a support seat is fixed to the end of the transmission rod. A height-adjustable fixed seat is provided on the top of the support seat, and a conveyor belt is connected to the top of the fixed seat. The angle of the conveyor belt at the top of the fixed seat is adjustable. A dispersing mechanism for dispersing stacked tobacco leaves during conveying is provided on the top of the conveyor belt. Levels are installed at both ends of the corresponding side walls of the support platform. The beneficial effects of this invention are: it integrates adaptive support, multi-degree-of-freedom conveying adjustment, and online dispersing, reducing the auxiliary operation time for manual leveling, equipment relocation, and manual spreading of tobacco leaves. It achieves continuous and stable flow from grading to weighing, significantly improving the overall operating efficiency of tobacco leaf purchasing stations.

Description

Technical Field

[0001] This invention relates to the field of conveyor technology, specifically to a conveyor with auxiliary support devices for tobacco leaf purchasing stations. Background Technology

[0002] Tobacco purchasing stations are crucial for grading, classifying, weighing, and settling accounts for tobacco leaves after initial curing by farmers. In this process, conveyors are widely used to smoothly transport the graded tobacco leaves from the grading table to the weighing equipment or packing station. With the increasing standardization and automation of tobacco purchasing, the functional requirements for conveying equipment are no longer limited to simple material transport, but are gradually developing towards multi-dimensional adjustment, operational adaptability, and integrated material pre-processing.

[0003] Existing conveyors used for tobacco leaf purchasing typically employ a fixed frame structure. Tobacco leaf purchasing stations are mostly located in towns or rural areas where the working ground is often uneven. The conveyor's support legs are mostly rigid structures, unable to adjust to varying ground levels, leading to swaying during operation. Once in place, the existing conveyors maintain a fixed conveying direction. However, in actual purchasing sites, the locations of weighing equipment, baling areas, and grading platforms are complex, making it difficult for fixed-direction conveyors to flexibly adapt to changes in site layout. Furthermore, the heights of weighing equipment and receiving platforms vary between different purchasing stations, and existing conveyors cannot adjust to the actual docking height. Moreover, existing conveyors lack a pre-processing function for stacked tobacco leaves; stacked conveying results in the tobacco leaves remaining compressed when entering weighing or subsequent processing stages, affecting weighing accuracy. Therefore, we propose a conveyor with an auxiliary support device for tobacco leaf purchasing stations. Summary of the Invention

[0004] The purpose of this invention is to provide a conveyor with an auxiliary support device for tobacco leaf purchasing stations, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a conveyor with an auxiliary support device for a tobacco leaf purchasing station, comprising a support platform, a support mechanism for supporting the support platform and adjusting its level at the bottom of the support platform, a transmission rod rotatably connected to the top center of the support platform, and a support seat fixedly connected to the end of the transmission rod, a height-adjustable fixed seat provided on the top of the support seat, and a conveyor belt connected to the top of the fixed seat, the angle of the conveyor belt at the top of the fixed seat being adjustable, a dispersing mechanism for dispersing stacked tobacco leaves during conveying provided on the top of the conveyor belt, and a level installed at both ends of the support platform corresponding to the two side walls.

[0006] Preferably, the support mechanism includes a fixed sleeve, a lifting rod, a support spring, and a positioning plate. Fixed sleeves are fixedly connected to the four corners of the bottom of the support platform, and a lifting rod is slidably connected inside the fixed sleeve. A support spring is fixedly connected between the top of the inner wall of the fixed sleeve and the lifting rod. A support plate is fixedly connected to one end of the support spring outside the fixed sleeve, and a self-locking wheel is installed at the bottom of the support plate. Multiple conical teeth are integrally formed on one inner wall of the lifting rod. A vertical groove is formed on the side of the lifting rod away from the conical teeth, and an adjusting screw is slidably connected inside the groove. A positioning plate is connected to one end of the adjusting screw inside the lifting rod. A horizontal threaded hole is formed on the surface of the positioning plate, and the adjusting screw is threaded into the threaded hole. Multiple conical holes are formed on the side of the positioning plate near the conical teeth, and the conical teeth are engaged in the conical holes. The adjusting screw is rotatably connected to the bottom end of the fixed sleeve via a bearing.

[0007] Preferably, the dispersing mechanism includes a fixed frame, an electric push rod, a mounting frame, and dispersing rollers. The dispersing rollers are fixedly connected to the top of the conveyor belt, and an electric push rod is fixedly installed at the top center of the dispersing rollers. The piston rod end of the electric push rod passes through the fixed frame and is fixedly connected to the mounting frame, and the mounting frame is slidably connected within the fixed frame. Dispersing rollers are equidistantly arranged within the mounting frame, and both ends of the dispersing rollers are rotatably connected within the mounting frame via bearings. A rotating motor is fixedly connected to the side wall of the mounting frame, and the output shaft end of the rotating motor is fixedly connected to the dispersing rollers.

[0008] Preferably, one end of the fixed base has a groove, and a linear module is provided in the groove. The end of the sliding block of the linear module is rotatably connected to a support rod via a rotating shaft. A connecting block is fixed to the bottom of the conveyor belt, and the end of the support rod is rotatably connected to the connecting block.

[0009] Preferably, both ends of the fixed base are integrally provided with protrusions symmetrically, and the bottom of the protrusions is fixedly connected with guide rods. Both ends of the support base are integrally provided with connecting blocks symmetrically, and the end of the guide rod slides through the connecting block.

[0010] Preferably, a worm gear is fixedly connected to the bottom of the transmission rod, and mounting plates are symmetrically fixedly connected to the bottom of the support platform outside the transmission rod. A worm is rotatably connected between the two mounting plates, and the worm and the worm gear are meshed together. A drive motor is fixedly installed on the surface of the mounting plate at the bottom of the support platform, and the output shaft end of the drive motor is fixedly connected to the worm. A protective box is provided at the bottom of the support platform, and the transmission rod, worm gear, and drive motor are all located inside the protective box.

[0011] Preferably, the top of the support platform is fixedly connected with an annular limiting rod, the bottom of the support seat is symmetrically provided with arc-shaped grooves, the annular limiting rod is slidably connected in the two arc-shaped grooves, a ball bearing is embedded in the arc-shaped groove at the bottom of the support seat, the top of the annular limiting rod is provided with an annular rolling groove, and the ball bearing in the arc-shaped groove of the support seat is rotatably connected in the annular rolling groove.

[0012] Preferably, a bidirectional lead screw is rotatably connected to the support base via a bearing. A servo motor is fixedly installed at the end of the support base, and the output shaft end of the servo motor is fixedly connected to the bidirectional lead screw. The two ends of the bidirectional lead screw are symmetrically threaded to movable seats. An adjusting rod is rotatably connected to the top of the movable seat. Fixed blocks are symmetrically fixed to the two ends of the bottom of the fixed seat. The end of the adjusting rod is rotatably connected to the fixed block.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This invention solves the problem of suspension and swaying of traditional rigid outriggers on uneven ground by setting up a support mechanism and using a level. By driving the rotation of the worm gear, worm wheel, and transmission rod, the support base and the conveying components above it can be rotated arbitrarily in the horizontal plane, which can flexibly adapt to the non-linear layout between the grading platform, weighing equipment, and packaging station. Through the linkage of the bidirectional lead screw, moving seat, and adjusting rod, the fixed seat and conveyor belt can be raised and lowered smoothly. Combined with the swing of the support rod driven by the linear module, the pitch angle of the conveyor belt relative to the fixed seat can be adjusted independently, so that the discharge end of the conveyor belt can be accurately connected to the weighing platform or receiving equipment of different heights.

[0015] 2. The present invention can actively separate and disperse the stacked tobacco leaves during the conveying process through the setting of the dispersing mechanism, so that the tobacco leaves are evenly conveyed to the weighing stage in a single layer or thin layer, effectively eliminating the weight error caused by the stacking of tobacco leaves; the height of the dispersing roller can be adjusted in real time through the electric push rod, and the dispersing force can be adaptively adjusted according to the thickness of the stacked tobacco leaves, avoiding excessive compression between the dispersing roller and the tobacco leaves, which would cause leaf damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the conveyor belt angle adjustment structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the conveyor belt adjusting its level according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure after height adjustment of the present invention;

[0019] Figure 4 This is a side view structural schematic diagram of the dispersing roller of the present invention;

[0020] Figure 5This is a schematic diagram of the connection structure of the support mechanism of the present invention.

[0021] In the diagram: 1. Support platform; 2. Support mechanism; 4. Support base; 5. Movable base; 6. Adjusting rod; 7. Fixed base; 8. Conveyor belt; 9. Dispersing mechanism; 10. Protrusion; 11. Guide rod; 12. Linear module; 13. Support rod; 14. Fixed frame; 15. Electric push rod; 16. Mounting frame; 17. Dispersing roller; 18. Transmission rod; 19. Worm gear; 20. Worm; 21. Drive motor; 22. Annular limit rod; 23. Fixed sleeve; 24. Lifting rod; 25. Support spring; 26. Positioning plate; 27. Conical tooth; 28. Slide groove; 29. ​​Adjusting screw; 30. Self-locking wheel; 31. Support plate; 32. Level; 33. Bidirectional lead screw; 34. Servo motor. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 The present invention provides a technical solution: a conveyor with an auxiliary support device for a tobacco leaf purchasing station, including a support platform 1, a support mechanism 2 for supporting the support platform 1 and adjusting the level of the support platform 1 at the bottom, a transmission rod 18 rotatably connected to the top center of the support platform 1, and a support seat 4 fixedly connected to the end of the transmission rod 18, a height-adjustable fixed seat 7 provided on the top of the support seat 4, and a conveyor belt 8 connected to the top of the fixed seat 7, the angle of the conveyor belt 8 at the top of the fixed seat 7 being adjustable, a dispersing mechanism 9 for dispersing stacked tobacco leaves during conveying provided on the top of the conveyor belt 8, and a level 32 installed at both ends of the two side walls of the support platform 1.

[0024] Please see Figure 1 and Figure 5 The support mechanism 2 includes a fixed sleeve 23, a lifting rod 24, a support spring 25, and a positioning plate 26. Fixed sleeves 23 are fixedly connected to the four corners of the bottom of the support platform 1, and the lifting rod 24 is slidably connected inside the fixed sleeve 23. The support spring 25 is fixedly connected between the top of the inner wall of the fixed sleeve 23 and the lifting rod 24. The support plate 31 is fixedly connected to one end of the support spring 25 located outside the fixed sleeve 23, and a self-locking wheel 30 is installed at the bottom of the support plate 31.

[0025] Multiple conical teeth 27 are integrally formed on one inner wall of the lifting rod 24. A vertical groove 28 is opened on the side of the lifting rod 24 away from the conical teeth 27, and an adjusting screw 29 is slidably connected in the groove 28. One end of the adjusting screw 29 located inside the lifting rod 24 is connected to a positioning plate 26. A horizontal threaded hole is opened on the surface of the positioning plate 26, and the adjusting screw 29 is threaded into the threaded hole. Multiple conical holes are opened on the side of the positioning plate 26 located from the conical teeth 27, and the conical teeth 27 are engaged in the conical holes. The adjusting screw 29 is rotatably connected to the bottom end of the fixed sleeve 23 through a bearing.

[0026] It should be noted that in this embodiment, there are four fixed sleeves 23, and the four fixed sleeves 23 are respectively fixed to the four corners of the bottom of the support platform 1. The adjusting screw 29 is rotatably connected to the bottom end of the fixed sleeve 23, and the end of the adjusting screw 29 passes through the slide groove 28 and extends into the inside of the lifting rod 24. A threaded hole is opened at the center of the positioning plate 26, and the adjusting screw 29 is threadedly connected in the threaded hole. The corresponding two side walls of the positioning plate 26 are respectively in contact with the corresponding two inner walls of the lifting rod 24, so that the positioning plate 26 can slide in the vertical direction inside the lifting rod 24.

[0027] When the adjusting screw 29 is rotated, the positioning plate 26 is threadedly connected to the adjusting screw 29, causing the positioning plate 26 to move away from the conical teeth 27 on the inner wall of the lifting rod 24. At this time, the lifting rod 24 is unlocked and can be slidably connected inside the fixed sleeve 23, allowing the height of this position to be adjusted. After adjustment, the adjusting screw 29 is rotated in the opposite direction, causing the positioning plate 26 to contact the inner wall of the lifting rod 24. The conical teeth 27 on the inner wall of the lifting rod 24 are once again engaged with the conical hole on the positioning plate 26, thus locking the lifting rod 24 again. The lifting rods 24 in the four fixed sleeves 23 can be adjusted separately, allowing each support leg to automatically adjust its extension length according to the unevenness of the ground, ensuring that all self-locking wheels 30 are in contact with the ground temperature.

[0028] Please see Figure 3 and Figure 4 The dispersing mechanism 9 includes a fixed frame 14, an electric push rod 15, a mounting frame 16, and a dispersing roller 17. The dispersing roller 17 is fixedly connected to the top of the conveyor belt 8, and the electric push rod 15 is fixedly installed at the top center of the dispersing roller 17. The piston rod end of the electric push rod 15 passes through the fixed frame 14 and is fixedly connected to the mounting frame 16. The mounting frame 16 is slidably connected to the fixed frame 14. The dispersing rollers 17 are equidistantly arranged in the mounting frame 16, and the two ends of the dispersing roller 17 are rotatably connected to the mounting frame 16 through bearings. A rotating motor is fixedly connected to the side wall of the mounting frame 16, and the output shaft end of the rotating motor is fixedly connected to the dispersing roller 17.

[0029] It should be noted that, in this embodiment, when the dispersing operation is not required, the electric push rod 15 controls the mounting frame 16 to be at the top of the fixed frame 14; when the conveyed tobacco leaves need to be separated and dispersed, the electric push rod 15 controls the mounting frame 16 to descend, so that there is a certain gap between the dispersing roller 17 and the conveyor belt 8. When the tobacco leaves are being conveyed, the rotating motor drives the dispersing roller 17 to rotate, thereby separating the stacked tobacco leaves during the conveying process, so that the tobacco leaves are evenly conveyed to the weighing stage in a single layer or thin layer state.

[0030] Please see Figure 1 and Figure 3 The fixed base 7 has a groove at one end, and a linear module 12 is provided in the groove. The sliding block end of the linear module 12 is rotatably connected to a support rod 13 via a rotating shaft. A connecting block is fixed to the bottom of the conveyor belt 8, and the end of the support rod 13 is rotatably connected to the connecting block.

[0031] It should be noted that, in this embodiment, by activating the linear module 12, the sliding block on it can be controlled to move horizontally, causing the support rod 13 connected by the rotating shaft to swing. The upper end of the support rod 13 is rotatably connected to the connecting block at the bottom of the conveyor belt 8. Therefore, the swing of the support rod 13 will push or pull down the corresponding end of the conveyor belt 8, causing the conveyor belt 8 to change its pitch angle relative to the fixed seat 7, thereby achieving high and low pitch matching at the discharge end of the conveyor belt 8 to accurately connect with receiving equipment of different heights.

[0032] Please see Figure 1 and Figure 3 Both ends of the fixed base 7 are integrally provided with protrusions 10 symmetrically, and the bottom of the protrusions 10 is fixedly connected with guide rods 11. Both ends of the support base 4 are integrally provided with connecting blocks symmetrically, and the end of the guide rod 11 slides through the connecting block.

[0033] It should be noted that in this embodiment, during the lifting and lowering of the fixed base 7, the protrusion 10 also lifts and lowers accordingly. The guide rod 11 at the bottom of the protrusion 10 is slidably connected to the connecting block on the support base 4, thereby ensuring the stable lifting and lowering of the fixed base 7.

[0034] Please see Figure 2 A worm gear 19 is fixedly connected to the bottom of the transmission rod 18. A mounting plate is symmetrically fixed to the bottom of the support platform 1 outside the transmission rod 18, and a worm 20 is rotatably connected between the two mounting plates. The worm 20 and the worm gear 19 are meshed together. A drive motor 21 is fixedly installed on the surface of the mounting plate at the bottom of the support platform 1, and the end of the output shaft of the drive motor 21 is fixedly connected to the worm 20. A protective box is provided at the bottom of the support platform 1, and the transmission rod 18, the worm gear 19 and the drive motor 21 are all located inside the protective box.

[0035] It should be noted that in this embodiment, the relative positions of the grading platform, weighing equipment, and packing station in the tobacco leaf purchasing station are not fixed in a straight line. The drive motor 21 is started by the controller set in the device. After the drive motor 21 starts, it drives the worm gear 20 to rotate, and the worm gear 20 drives the worm wheel 19 meshing with it to rotate. The worm wheel 19 is fixed to the bottom of the transmission rod 18, and the top of the transmission rod 18 is fixed to the support base 4. Therefore, the support base 4 and all the conveying component fixing seats 7 and conveyor belt 8 above it rotate in the horizontal plane.

[0036] The worm gear 19 and worm 20 set have self-locking characteristics and can be stably stopped at any rotation angle without the need for an additional braking device.

[0037] Please see Figure 1 The top of the support platform 1 is fixed with an annular limiting rod 22, and the bottom of the support base 4 is symmetrically provided with arc-shaped grooves. The annular limiting rod 22 is slidably connected in the two arc-shaped grooves. A ball is embedded in the arc-shaped groove at the bottom of the support base 4. The top of the annular limiting rod 22 is provided with an annular rolling groove, and the ball in the arc-shaped groove of the support base 4 is slidably connected in the annular rolling groove.

[0038] It should be noted that, in this embodiment, during the rotation of the support base 4, the annular limiting rod 22 fixed to the top of the support platform 1 forms a sliding fit with the arc-shaped groove opened at the bottom of the support base 4. The ball embedded in the arc-shaped groove rolls in the annular rolling groove at the top of the annular limiting rod 22, which on the one hand provides guidance for the rotational movement, and on the other hand reduces frictional resistance, ensuring smooth and stable rotation.

[0039] Please see Figure 3 A bidirectional lead screw 33 is rotatably connected to the support base 4 via a bearing. A servo motor 34 is fixedly installed at the end of the support base 4, and the output shaft end of the servo motor 34 is fixedly connected to the bidirectional lead screw 33. The two ends of the bidirectional lead screw 33 are symmetrically threaded to a movable seat 5. An adjusting rod 6 is rotatably connected to the top of the movable seat 5. Fixed blocks are symmetrically fixed to the two ends of the bottom of the fixed seat 7. The end of the adjusting rod 6 is rotatably connected to the fixed block.

[0040] It should be noted that in this embodiment, when the servo motor 34 is working, it drives the bidirectional lead screw 33 to rotate. Through the threaded connection between the two movable seats 5 and the two ends of the bidirectional lead screw 33, the two movable seats 5 can move closer or further away at the same time. Under the action of the adjusting rod 6, the lifting and lowering adjustment of the fixed seat 7 is realized.

[0041] Positioning rods are symmetrically arranged inside the support base 4, and the movable base 5 is slidably connected to the outside of the two positioning rods to ensure the smooth linear movement of the movable base 5.

[0042] Specifically, when using the present invention, before the equipment is in place, the support mechanism 2 is in a free state. When the entire equipment is placed on the ground of the tobacco purchasing station, if there are local unevenness in the ground, the lifting rods 24 at each location will automatically overcome or utilize the elastic force of the support springs 25 according to the difference between the weight of the machine and the reaction force of the ground, resulting in different degrees of retraction or extension. That is, the support springs 25 at the low-lying areas push the lifting rods 24 to extend further, while the lifting rods 24 at the protruding areas are compressed upward.

[0043] By observing the level 32 installed on the support platform 1, the operator can intuitively judge the level status of the whole machine. If there is a tilt in a certain direction, the adjusting screw 29 at the corresponding position is rotated to disengage the positioning plate 26 from the inner wall of the lifting rod 24. The conical hole on the positioning plate 26 disengages from the conical tooth 27 of the lifting rod 24, and the lifting rod 24 is locked in contact. When the appropriate height is adjusted, the adjusting screw 29 is rotated in the opposite direction to re-engage and lock the conical hole and the conical tooth 27, so as to achieve precise fine adjustment of the support height.

[0044] The controller in the device controls the drive motor 21 to rotate the worm 20. The worm 20 and the worm wheel 19 are meshed together, causing the worm wheel 19 to rotate, which in turn rotates the support seat 4 and adjusts the orientation of the conveyor belt 8. When the conveying station has a certain height, the servo motor 34 can be controlled to drive the bidirectional lead screw 33 to rotate. The two moving seats 5 are connected to the two ends of the bidirectional lead screw 33 by threads, so that the two moving seats 5 move away from each other at the same time. Under the action of the adjusting rod 6, the fixed seat 7 is raised, and finally the conveyor belt 8 is raised to match the height of the conveying station.

[0045] Based on the height adjustment, when the linear module 12 is started, its sliding block moves in the horizontal direction, causing the support rod 13 to swing. The swing of the support rod 13 will push or pull down the corresponding end of the conveyor belt 8, so that the conveyor belt 8 will produce a pitch angle change relative to the fixed seat 7, so as to achieve precise docking of the discharge end of the conveyor belt 8 with the appropriate height receiving equipment.

[0046] When the tobacco leaves are graded and fall into the conveyor belt 8, they may sometimes pile up. If it is necessary to break up the piled material, the height of the mounting frame 16 within the fixed frame 14 can be adjusted by the electric push rod 15, thereby adjusting the distance between the breaking roller 17 and the surface of the conveyor belt 8. By rotating the motor to drive the breaking roller 17 to rotate, the thicker tobacco leaves during the conveying process can be separated, so that the tobacco leaves can continue to be conveyed to the rear end in a relatively uniform single layer or thin layer.

[0047] In summary, this invention integrates adaptive support, multi-degree-of-freedom conveying and adjustment, and online dispersing, reducing the auxiliary operation time of manual leveling, equipment relocation, and manual spreading of tobacco leaves. It realizes continuous and stable flow from grading to weighing, significantly improving the overall operating efficiency of tobacco leaf purchasing stations.

[0048] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveyor with auxiliary support device for a tobacco leaf purchasing station, comprising a support platform (1), characterized in that, The bottom of the support platform (1) is provided with a support mechanism (2) for supporting the support platform (1) and adjusting the level of the support platform (1). The top center of the support platform (1) is rotatably connected to a transmission rod (18), and the end of the transmission rod (18) is fixedly connected to a support seat (4). The top of the support seat (4) is provided with a height-adjustable fixed seat (7), and the top of the fixed seat (7) is connected to a conveyor belt (8). The angle of the conveyor belt (8) at the top of the fixed seat (7) is adjustable. The top of the conveyor belt (8) is provided with a dispersing mechanism (9) for dispersing the stacked tobacco leaves during conveying. The two ends of the support platform (1) are equipped with a level (32) corresponding to both sides of the side wall.

2. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: The support mechanism (2) includes a fixed sleeve (23), a lifting rod (24), a support spring (25), and a positioning plate (26). The four corners of the bottom of the support platform (1) are fixedly connected to the fixed sleeve (23), and the lifting rod (24) is slidably connected inside the fixed sleeve (23). The top of the inner wall of the fixed sleeve (23) is fixedly connected to the lifting rod (24), and the support spring (25) is fixedly connected to the top of the inner wall of the fixed sleeve (23). The end of the support spring (25) located outside the fixed sleeve (23) is fixedly connected to the support plate (31), and the bottom of the support plate (31) is equipped with a self-locking wheel (30). A plurality of conical teeth (27) are integrally provided on one side of the inner wall of the lifting rod (24). The lifting rod (24) has a vertical groove (28) on one side of the far conical tooth (27), and an adjusting screw (29) is slidably connected in the groove (28). The adjusting screw (29) is connected to a positioning plate (26) at one end inside the lifting rod (24). The positioning plate (26) has a horizontal threaded hole on its surface. The adjusting screw (29) is threaded into the threaded hole. The positioning plate (26) has multiple conical holes on one side of the conical tooth (27). The conical tooth (27) is engaged in the conical hole. The adjusting screw (29) is rotatably connected to the bottom end of the fixed sleeve (23) through a bearing.

3. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: The dispersing mechanism (9) includes a fixed frame (14), an electric push rod (15), a mounting frame (16), and a dispersing roller (17). The top of the conveyor belt (8) is fixedly connected to the dispersing roller (17), and the electric push rod (15) is fixedly installed at the top center of the dispersing roller (17). The piston rod end of the electric push rod (15) passes through the fixed frame (14) and is fixedly connected to the mounting frame (16). The mounting frame (16) is slidably connected to the fixed frame (14). The dispersing rollers (17) are equidistantly arranged in the mounting frame (16), and the two ends of the dispersing rollers (17) are rotatably connected to the mounting frame (16) through bearings. The side wall of the mounting frame (16) is fixedly connected to a rotating motor, and the output shaft end of the rotating motor is fixedly connected to the dispersing roller (17).

4. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: One end of the fixed seat (7) is provided with a groove, and a linear module (12) is provided in the groove. The sliding block end of the linear module (12) is rotatably connected to a support rod (13) through a rotating shaft. The bottom of the conveyor belt (8) is fixedly connected to a connecting block, and the end of the support rod (13) is rotatably connected to the connecting block.

5. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: Both ends of the fixed base (7) are symmetrically and integrally provided with protrusions (10), and the bottom of the protrusions (10) is fixedly connected with guide rods (11). Both ends of the support base (4) are symmetrically and integrally provided with connecting blocks, and the end of the guide rod (11) slides through the connecting block.

6. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: A worm gear (19) is fixedly connected to the bottom of the transmission rod (18). The bottom of the support platform (1) is symmetrically fixedly connected to the mounting plates outside the transmission rod (18), and a worm (20) is rotatably connected between the two mounting plates. The worm (20) and the worm gear (19) are meshed together. A drive motor (21) is fixedly installed on the surface of the mounting plate at the bottom of the support platform (1), and the output shaft end of the drive motor (21) is fixedly connected to the worm (20). A protective box is provided at the bottom of the support platform (1), and the transmission rod (18), the worm gear (19) and the drive motor (21) are all located inside the protective box.

7. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: The top of the support platform (1) is fixed with an annular limiting rod (22), and the bottom of the support base (4) is symmetrically provided with arc-shaped grooves. The annular limiting rod (22) is slidably connected in the two arc-shaped grooves. A ball bearing is embedded in the arc-shaped groove at the bottom of the support base (4). An annular rolling groove is provided at the top of the annular limiting rod (22), and the ball bearing in the arc-shaped groove of the support base (4) is slidably connected in the annular rolling groove.

8. A conveyor with auxiliary support device for a tobacco leaf purchasing station according to claim 1, characterized in that: The support base (4) is rotatably connected to a bidirectional lead screw (33) via a bearing. A servo motor (34) is fixedly installed at the end of the support base (4), and the output shaft end of the servo motor (34) is fixedly connected to the bidirectional lead screw (33). The two ends of the bidirectional lead screw (33) are symmetrically threaded to a movable seat (5). An adjusting rod (6) is rotatably connected to the top of the movable seat (5). Fixed blocks are symmetrically fixed at both ends of the bottom of the fixed seat (7). The end of the adjusting rod (6) is rotatably connected to the fixed block.

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