Harvesting machine for semi-chopping upper tobacco leaves

Abstract

The utility model discloses an upper tobacco leaf semi-cut harvesting machine, which relates to the technical field of tobacco leaf planting and comprises a base, a traveling mechanism, a cutting mechanism, a clamping mechanism and a driving mechanism. The walking mechanisms are arranged on the two sides of the lower portion of the base. The cutting mechanism is arranged on the base and used for cutting the tobacco stems in the middle. The clamping mechanism is arranged above the cutting mechanism and can clamp the upper tobacco leaves with stems and guide the cut upper tobacco leaves to be conveyed in the front-back direction. The driving mechanism is arranged on the base and used for driving the clamping mechanism to convey cut upper tobacco leaves in the front-back direction. In the advancing process, the cutting mechanism automatically cuts the upper tobacco leaves, the clamping mechanism clamps the tobacco stems and guides the cut upper tobacco leaves to be conveyed in the front-back direction, and therefore batch automatic harvesting of tobacco is completed, the labor intensity of farmers is reduced, and one-time harvesting of the upper tobacco leaves is achieved.

Description

Technical Field

[0001] The utility model relates to the field of tobacco planting, in particular to an upper tobacco leaf half-cut plant harvester. Background Art

[0002] A tobacco plant consists of tobacco leaves, tobacco stems and tobacco roots. The tobacco leaves consist of lower leaves, middle leaves and upper leaves, and are the main ingredient in making cigarettes. According to the different methods and habits of harvesting and roasting tobacco leaves in each flue-cured tobacco producing area, some plants harvest tobacco leaves one by one from the lower leaves according to time and maturity, then move on to the middle leaves and then to the upper leaves; some plants harvest tobacco leaves one by one from the lower leaves to the middle leaves, leaving 4-6 upper leaves and the upper tobacco stems (i.e. half-cut plants) for harvesting.

[0003] In the prior art, when 4-6 upper tobacco leaves are harvested together with the upper tobacco stems (i.e., half-chopped plants), the upper tobacco leaves are usually harvested manually by half-chopping the plants with stems using a sickle, which is inefficient and labor-intensive. Utility Model Content

[0004] The main purpose of the utility model is to provide an upper tobacco leaf half-cut plant harvester, which aims to increase the cutting speed and reduce labor intensity, thereby reducing labor and costs and increasing tobacco farmers' income.

[0005] To achieve the above-mentioned purpose, the upper tobacco leaf half-cut plant harvester proposed in the present invention comprises:

[0006] base;

[0007] A walking mechanism is provided on both sides of the lower part of the base;

[0008] A cutting mechanism, provided on the base, for cutting the tobacco stems;

[0009] a clamping mechanism, disposed above the cutting mechanism, capable of clamping the tobacco stems and guiding the cut upper tobacco leaves to be transported in a forward and backward direction; and

[0010] The driving mechanism is arranged on the base and is used for driving the clamping mechanism to transport the cut upper tobacco leaves in the front-back direction.

[0011] In one embodiment, the upper tobacco leaf half-chopped plant harvester also includes a collecting mechanism arranged behind the clamping mechanism, and the collecting device includes a horizontally arranged base plate and side plates respectively arranged vertically on both sides of the base plate, for collecting the upper tobacco leaves guided and transported by the clamping mechanism.

[0012] In one embodiment, the cutting mechanism comprises:

[0013] a fixing plate fixed to a side of the base and located below the clamping mechanism;

[0014] a movable plate, movably mounted to the upper end surface of the fixed plate in the left-right direction; and

[0015] At least one cutting knife, the cutting knife includes two blades that cooperate with each other, the cutting edges of the two blades are opposite, and the two blades are respectively fixed to the fixed plate and the movable plate, so as to cooperate with each other to cut the tobacco leaves when the movable plate moves.

[0016] In one embodiment, the cutting blades are provided in plurality and spaced apart in the left-right direction; and / or,

[0017] The cutting mechanisms are provided with two, which are spaced apart in the upper and lower directions.

[0018] In one embodiment, the clamping mechanism includes two clamping assemblies, each clamping assembly including:

[0019] A conveyor belt having a conveying surface extending in an up-down direction;

[0020] a plurality of protrusions, wherein the plurality of protrusions are arranged at intervals on the conveying surface of the conveyor belt;

[0021] The two conveyor belts jointly define a clamping channel extending in the front-to-rear direction, and the conveying surfaces of the two conveyor belts are arranged toward each other in the section of the clamping channel so that at least part of the protrusions can move into the clamping channel to clamp the cigarette rod as it passes through;

[0022] Wherein, the front end of the clamping channel and the cutting mechanism are arranged correspondingly in the vertical direction.

[0023] In one embodiment, each of the conveyor belts has an extension section located in front of the clamping channel, and the extension sections of the two conveyor belts are arranged at an angle.

[0024] In one embodiment, an end portion of each protrusion facing away from the corresponding conveying surface is formed with an oblique angle.

[0025] In one embodiment, each of the protrusions is made of a flexible material.

[0026] In one embodiment, the clamping mechanisms are provided in plurality and are spaced apart in the vertical direction.

[0027] In one embodiment, each clamping assembly further comprises a tensioning structure, wherein the tensioning structure comprises a mounting rod extending in a front-to-rear direction, and the length of the mounting rod is adjustable;

[0028] Each of the clamping structures further comprises a plurality of rotating wheels rotating on axes extending in vertical directions, wherein two of the rotating wheels are connected by the mounting rod;

[0029] The corresponding conveyor belts are sleeved on the exterior of the plurality of rotating wheels.

[0030] The technical solution of the present invention includes a base, a traveling mechanism, a cutting mechanism, a clamping mechanism and a driving mechanism. The traveling mechanism drives the base to move. The cutting mechanism is arranged on the base to cut the middle tobacco stems during the movement. The clamping device is arranged above the cutting mechanism and can clamp the tobacco stems and guide the cut upper tobacco leaves with stems to be transported from front to back, thereby completing the batch automatic harvesting of tobacco, reducing the labor intensity of farmers, and selectively collecting the required upper tobacco leaves to achieve one-time harvesting with stems. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 A schematic structural diagram of an embodiment of an upper tobacco leaf half-chopped plant harvester provided by the present invention;

[0033] Figure 2 A schematic structural diagram of another embodiment of the upper tobacco leaf half-chopped plant harvester provided by the utility model;

[0034] Figure 3 This is a structural schematic diagram of another embodiment of the upper tobacco leaf half-chopped plant harvester provided by the utility model.

[0035] Description of Figure Numbers:

[0036] 100. Upper tobacco half-stalk harvester; 1. Base; 2. Cutting mechanism; 21. Fixed plate; 22. Movable plate; 23. Cutter; 3. Clamping mechanism; 31. Conveyor belt; 32. Bump; 321. Inclined surface; 33. Clamping channel; 34. Extension section; 35. Tensioning structure; 351. Mounting rod; 352. Rotating wheel; 4. Collecting mechanism; 41. Base plate; 42. Side plate.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] In the prior art, in order to cut off the unnecessary tobacco stems and harvest the upper tobacco leaves, the tobacco leaves are usually harvested manually using sickles, which is inefficient and labor-intensive.

[0042] In order to solve the above problems, the utility model provides an upper tobacco leaf half-chopped plant harvester.

[0043] See also Figure 1 In one embodiment of the present invention, the upper tobacco leaf half-chopped stem harvester includes a base 1, a traveling mechanism, a cutting mechanism 2, a clamping mechanism 3 and a driving mechanism; the traveling mechanism is arranged on both sides of the lower part of the base 1; the cutting mechanism 2 is arranged on the base 1 to cut the tobacco stems; the clamping mechanism 3 is arranged above the cutting mechanism 2 and can clamp the tobacco stems and guide the cut upper tobacco leaves to be transported in the front-to-back direction; the driving mechanism is arranged on the base 1 to drive the clamping mechanism 3 to transport the cut upper tobacco leaves in the front-to-back direction;

[0044] The technical solution of the present invention is to provide a base 1, a walking mechanism, a cutting mechanism 2, a clamping mechanism 3 and a driving mechanism. The walking mechanism drives the base 1 to move. The cutting mechanism 2 is arranged on the base 1 to cut the middle tobacco stems during the movement. The clamping device is arranged above the cutting mechanism 2, which can clamp the tobacco stems and guide the cut upper tobacco leaves to be transported in the front and back directions, thereby completing the batch automatic collection of tobacco, reducing the labor intensity of farmers, and selectively collecting the required upper tobacco leaves to achieve one-time stem harvesting.

[0045] See also Figure 2 In one embodiment of the present invention, the upper tobacco leaf half-chopped plant harvester also includes a collecting mechanism 4 arranged behind the clamping mechanism 3, and the collecting device includes a horizontally arranged base plate 41 and side plates respectively arranged vertically on both sides of the base plate 41, for collecting the upper tobacco leaves guided and transported by the clamping mechanism 3; it can be understood that, in order to facilitate installation, the side plates in the present invention are arranged vertically, and in order to expand the area for receiving the upper tobacco leaves, the side plates can also be adaptively tilted in the direction away from the other side plate. The present invention does not limit the inclination angle, and the angle between the side plate and the vertical direction can be 15°, 30° or 45°, as long as the receiving area can be expanded.

[0046] See also Figure 3In one embodiment of the present invention, the cutting mechanism 2 includes a fixed plate 21, a movable plate and at least one cutting knife 23; it can be understood that the middle tobacco stem is the part that needs to be cut, and the upper tobacco leaves are the part that needs to be collected. The fixed plate 21 is fixed to the side of the base 1 and is located below the clamping mechanism 3, so as to correspond to the middle tobacco stem; the movable plate 22 is movably installed to the upper end surface of the fixed plate 21 along the left and right directions; the cutting knife 23 includes two blades that cooperate with each other. It can be understood that the two blades are close to each other, and the cutting edges of the two blades are opposite to each other. They are respectively fixed to the fixed plate 21 and the movable plate 22, so as to cooperate with each other to cut the middle tobacco stem when the movable plate 22 moves. Among them, the cutting mechanism 2 also includes a cutting motor and a crank-connecting rod mechanism, the cutting motor output shaft is rotatably connected to the crank, and the connecting rod is connected to the movable plate 22, so as to drive the movable plate 22 to perform periodic reciprocating motion in the left and right directions when the cutting motor rotates, wherein the crank-connecting rod structure can also be adaptably replaced by a ball screw structure, and the present invention does not impose any restrictions on this, as long as the rotation can be converted into linear motion; it can be understood that since the planting spacing of tobacco is set, by reasonably setting the cutting motor speed and the traveling speed of the walking mechanism, the upper tobacco leaf half-chopped plant harvester can make the cutting motor and the movable plate 22 approach the fixed plate 21 when approaching the tobacco to perform a cutting action; after cutting a tobacco plant, the upper tobacco leaf half-chopped plant harvester moves to the next tobacco plant, and at this time the cutting motor drives the movable plate 22 to move away from the fixed plate 21, thereby completing automatic cutting and separation. In addition, a limiting baffle can be added on both sides of the movable plate 22 to limit the movable plate 22 and prevent the movable plate 22 from colliding with the two sides of the base 1. It can also be used to reduce the movable stroke of the blade and increase the frequency of shearing. In another embodiment of the present invention, the movable plate 22 can be set as two, and the two movable plates 22 are respectively mounted on the upper end surface and the lower end surface of the fixed plate 21 in a left-right direction. The cutting knife 23 includes two blades that cooperate with each other, and the blades of the two blades are opposite to each other. The two blades are respectively mounted on the two movable plates 22 so that when the two movable plates 22 move, they cooperate with each other to cut the tobacco leaves together.

[0047] Specifically, in one embodiment of the present invention, the position of each tobacco plant is not fixed. In order to expand the cutting range, multiple cutting knives 23 are provided, which are arranged at intervals in the left and right directions, so as to cut tobacco at different positions, avoiding the need to adjust the orientation of the harvester and affecting the harvesting efficiency.

[0048] In another embodiment of the present invention, it can be understood that the upper tobacco leaf half-chopped plant harvester harvests the upper tobacco leaves, and the tobacco stems located in the middle will block the movement of the upper tobacco leaf half-chopped plant harvester. There are two cutting mechanisms, which are spaced apart in the upper and lower directions, and the upper cutting mechanism is used to correspond to the upper end of the tobacco stem, and the lower cutting mechanism is used to correspond to the lower end of the tobacco stem, so that the tobacco stem is cut off during the movement, so that the upper tobacco leaf half-chopped plant harvester can move forward. At the same time, by setting two cutting mechanisms, the upper tobacco leaves are completely obtained and the rapid passing rate of the equipment is improved.

[0049] In one embodiment of the present invention, the clamping mechanism 3 includes two clamping components, each clamping component includes a conveyor belt 31 and a plurality of protrusions 32; the conveyor belt 31 has a conveying surface extending in the up-down direction to increase the contact area with the tobacco leaves; the plurality of protrusions 32 are arranged at intervals on the conveying surface of the conveyor belt 31; wherein, the two conveyor belts 31 jointly define a clamping channel extending in the front-back direction, and the conveying surfaces of the two conveyor belts 31 are arranged toward each other in the section of the clamping channel, so that at least part of the protrusions 32 can move into the clamping channel, which can be understood Yes, the protrusions 32 on the two conveyor belts 31 can be arranged to be distributed alternately in sequence, and a clamping space is formed between a protrusion 32 on the first conveyor belt 31 and an adjacent protrusion 32 on the second conveyor belt 31, and the spacing between the two protrusions 32 can be optionally set to 1.5cm-3cm, so as to clamp the upper tobacco leaves during the passage of the upper tobacco leaves with stems; in addition, the front end of the clamping channel is arranged corresponding to the cutting mechanism 2 in the vertical direction, so that when the cutting mechanism 2 cuts the middle tobacco stems, the clamping mechanism 3 can synchronously clamp the upper tobacco leaves to prevent the tobacco rods from tipping over. In another embodiment of the present invention, the clamping mechanism 3 includes a conveyor belt, multiple suction cups and a vacuum pump. The conveyor belt has a conveying surface extending in the front-to-back direction, and at least a portion of the conveying surface is designed with micropores. The multiple suction cups are arranged below the conveying surface and corresponding to the micropores to adsorb the upper tobacco leaves; when the conveyor belt moves, the vacuum pump starts to extract air from the suction cups to form a negative pressure area; after the upper tobacco leaves are cut and placed on the conveyor belt, the negative pressure acts on the bottom of the tobacco leaves through the micropores on the surface of the conveyor belt and the suction cups, generating an adsorption force, so that the tobacco leaves stick to the conveyor belt and are conveyed in the front-to-back direction.

[0050] In one embodiment of the present invention, in order to better clamp the tobacco rods, if the width of the clamping channel is set to be smaller, it will be inconvenient for the tobacco rods to enter. For this reason, each of the conveyor belts 31 has an extension section 34 located on the front side of the clamping channel, and the extension sections 34 of the two conveyor belts 31 are set at an angle. By setting the angle, the range of the clamping mechanism 3 to receive the tobacco rods is expanded, so that the clamping effect is better; it can be understood that the angle can be changed according to the actual tobacco planting conditions, and can be 45°, 90° or 135°. The present invention does not limit the specific value of the angle.

[0051] In one embodiment of the present invention, since tobacco leaves are relatively soft and easily scratched by sharp objects, each of the protrusions 32 is formed with at least one matching bevel 321 at the end facing away from the corresponding conveying surface. This matching bevel 321 may be formed between the end and the forward-facing surface of the protrusion 32, and / or between the end and the rearward-facing surface of the protrusion 32. This ensures that the protrusion 32 and the tobacco rod are in mostly surface contact, reducing damage to the tobacco leaves and improving their quality. It is understood that the present invention does not impose any restrictions on the specific angle of the bevel 321, as long as it reduces sharpness.

[0052] Specifically, in one embodiment of the present invention, due to the differences in individual tobacco leaves and the problem of installation accuracy, the distance between some adjacent protrusions 32 is small, which causes squeezing of the upper tobacco leaves. For this reason, the protrusions 32 are set to be a flexible material to reduce the squeezing of the upper tobacco leaves; wherein, the flexible material can be rubber, resin or other elastomers. In this embodiment, the flexible material is rubber, which is soft, low in cost, easy to process, and has good stability.

[0053] In one embodiment of the present invention, since the upper tobacco leaves with stems are generally longer, if a single clamping mechanism 3 is used to clamp the tobacco rod, the tobacco rod can easily be squeezed and tipped over during the clamping process. The clamping mechanism 3 is provided in plurality and is distributed at intervals in the vertical direction, thereby clamping multiple parts of the tobacco rod in the vertical direction, preventing the tobacco rod from tipping over and increasing the tobacco leaf collection rate.

[0054] In one embodiment of the present invention, each clamping assembly further comprises a tensioning structure 35, wherein the tensioning structure 35 comprises a mounting rod 351 extending in the front-rear direction, and the length of the mounting rod 351 is adjustable; each clamping structure further comprises a plurality of rotating wheels 352 rotating along an axis extending in the upper and lower directions, wherein two of the rotating wheels 352 are connected by the mounting rod 351; the corresponding conveyor belt 31 is sleeved on the outside of the plurality of rotating wheels 352; by sleeved on the outside of the plurality of rotating wheels 352, the conveyor belt 31 is tensioned, and in order to adjust the tensioning force, a mounting rod 351 is provided between two of the rotating wheels 352. In this embodiment, a mounting wheel is provided between two rotating wheels 352 at both ends of the plurality of rotating wheels 352, so as to better adjust the overall tensioning degree; the mounting rod 351 can be a sleeve-type design, that is, the mounting The rod 351 body is composed of two layers of inner and outer sleeves, and the inner tube can be telescoped into the outer tube and fixed at the required length by a locking mechanism (such as a lock, button lock, rotary lock, etc.); the mounting rod 351 can also be thread-adjustable, that is, one end or both ends of the mounting rod 351 are designed with internal and external threads, and the rod is telescoped by rotating a nut or a nut; by adjusting the length of the mounting rod 351, the tensioning degree of the conveyor belt 31 is adjusted. It can be understood that when the length of the mounting rod 351 is reduced, the tensioning effect of the rotating wheel 352 on the conveyor belt 31 is reduced, and the tensioning degree of the conveyor belt 31 is reduced, thereby facilitating the disassembly of the conveyor belt 31; in addition, in another embodiment of the present invention, in order to better tension the key parts of the conveyor belt 31, at least two of the multiple rotating wheels 352 are correspondingly arranged at the front end of the clamping channel and the rear end of the clamping channel.

[0055] In one embodiment of the present invention, the walking mechanism includes multiple sets of wheels, wheel seats, steering wheels and drive motors; each set of wheels is mounted on both sides of the lower part of the base 1 in pairs and connected by axles, and the drive motor is connected to each axle through a belt transmission to drive the wheels to rotate; and at least one set of wheels is mounted on the wheel seat, and the wheel seat is rotatably mounted on one side of the base 1. The wheel seat has an outer ring gear and cooperates with the steering wheel transmission, and the steering wheel is used to drive the wheel seat to rotate, thereby controlling the steering action of the wheel. It can be understood that the multiple sets of wheels are at least two sets to maintain the balance of the base 1, and in order to increase the carrying capacity, multiple sets of wheels can be adaptively set. The present invention does not limit the specific number of sets.

[0056] In one embodiment of the present invention, when the upper tobacco leaf half-chopped plant harvester is moving, by reasonably setting the cutting motor speed and the driving motor speed, the cutting cycle of the cutting mechanism 2 and the travel speed of the walking mechanism are controlled, so that when the upper tobacco leaf half-chopped plant harvester approaches the tobacco, the movable plate 22 of the cutting motor approaches the fixed plate 21 to perform a cutting action; after cutting a tobacco plant, the upper tobacco leaf half-chopped plant harvester moves to the next tobacco plant, and at this time the cutting motor drives the movable plate 22 to move away from the fixed plate 21, thereby completing automatic cutting and separation; after the upper tobacco leaves are cut, they synchronously enter the clamping space of the clamping mechanism 3, clamp the tobacco leaves in the front and back directions and send them to the collection mechanism 4 at the rear to complete the harvesting.

[0057] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An upper tobacco leaf half-chopped plant harvester, characterized in that: The upper tobacco leaf half-chopped plant harvester comprises: base; A walking mechanism is provided on both sides of the lower part of the base; A cutting mechanism, provided on the base, for cutting the tobacco stems; a clamping mechanism, provided above the cutting mechanism, capable of clamping the tobacco stems and guiding the cut upper tobacco leaves to be transported in a forward and backward direction; and The driving mechanism is arranged on the base and is used for driving the clamping mechanism to transport the cut upper tobacco leaves in the front-back direction.

2. The upper tobacco leaf half-chopped plant harvester according to claim 1, characterized in that: The upper tobacco leaf half-chopped plant harvester also includes a collecting mechanism arranged behind the clamping mechanism, and the collecting mechanism includes a horizontally arranged base plate and side plates vertically arranged on both sides of the base plate, which are used to collect the upper tobacco leaves guided and transported by the clamping mechanism.

3. The upper tobacco leaf half-chopped plant harvester according to claim 1, characterized in that: The cutting mechanism comprises: a fixing plate fixed to a side of the base and located below the clamping mechanism; a movable plate, movably mounted to the upper end surface of the fixed plate in the left-right direction; and At least one cutting knife, the cutting knife includes two blades that cooperate with each other, the cutting edges of the two blades are opposite, and the two blades are respectively fixed to the fixed plate and the movable plate, so as to cooperate with each other to cut the tobacco leaves when the movable plate moves.

4. The upper tobacco leaf half-chopped plant harvester according to claim 3, characterized in that: There are multiple cutting knives, which are spaced apart in the left and right directions; and / or, The cutting mechanisms are provided with two, which are spaced apart in the upper and lower directions.

5. The upper tobacco leaf half-chopped plant harvester according to claim 1, characterized in that: The clamping mechanism includes two clamping assemblies, each of which includes: A conveyor belt having a conveying surface extending in an up-down direction; a plurality of protrusions, wherein the plurality of protrusions are arranged at intervals on the conveying surface of the conveyor belt; The two conveyor belts jointly define a clamping channel extending in the front-to-rear direction, and the conveying surfaces of the two conveyor belts are arranged toward each other in the section of the clamping channel so that at least part of the protrusions can move into the clamping channel to clamp the cigarette rod as it passes through; The front end of the clamping channel is arranged corresponding to the cutting mechanism in the vertical direction.

6. The upper tobacco leaf half-chopped plant harvester according to claim 5, characterized in that: Each of the conveyor belts has an extension section located at the front side of the clamping channel, and the extension sections of the two conveyor belts are arranged at an angle.

7. The upper tobacco leaf half-chopped plant harvester according to claim 5, characterized in that: At least one matching inclined surface is formed on the end of each protrusion facing away from the corresponding conveying surface.

8. The upper tobacco leaf half-chopped plant harvester according to claim 5, characterized in that: Each of the protrusions is made of a flexible material.

9. The upper tobacco leaf half-chopped plant harvester according to claim 5, characterized in that: There are multiple clamping mechanisms, which are distributed at intervals in the vertical direction.

10. The upper tobacco leaf half-chopped plant harvester according to claim 5, characterized in that: Each clamping assembly further includes a tensioning structure, the tensioning structure including a mounting rod extending in a front-to-rear direction, the length of the mounting rod being adjustable; Each of the clamping mechanisms further comprises a plurality of rotating wheels rotating on axes extending in the vertical direction, wherein two of the rotating wheels are connected by the mounting rod; The corresponding conveyor belts are sleeved on the exterior of the plurality of rotating wheels.

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