Tobacco leaf harvesting machine adopting oppositely-closed type semicircular cutter

Abstract

The tobacco leaf harvesting machine comprises symmetrical supporting rods and is characterized in that the end portions of the two opposite sides of the symmetrical supporting rods are fixedly connected through transverse rods, the end portion of each supporting rod is fixedly connected with a supporting leg, the lower end of each supporting leg is rotationally connected with a walking wheel, and the walking wheels are fixedly connected with the supporting legs. The two cross rods are connected with a cutting assembly through a lifting assembly; the cutting assembly comprises a plurality of electric push rods, and the electric push rods are fixed to the ends of the lower cross beam respectively. The invention relates to the technical field of tobacco leaf harvesting equipment, in particular to a tobacco leaf harvesting machine adopting an involution type semicircular cutter, the involution type semicircular cutter is adopted as a main harvesting tool, a cutting knife moves up and down along a tobacco stem to cut leaf stalks of tobacco leaves, damage to tobacco plants is reduced, the cutting effect is guaranteed, and meanwhile the tobacco leaf harvesting efficiency is improved. Layered harvesting of different layers of tobacco leaves and the requirement for one-time harvesting are met.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf harvesting equipment, in particular to a tobacco leaf harvester using a combined semicircular cutter. Background Art

[0002] In the field of existing tobacco leaf harvesters, most of the equipment uses flexible rollers as the main harvesting tool. Although this harvesting method can achieve tobacco leaf collection in some cases, the harvesting efficiency of flexible rollers is relatively low and is not suitable for large-scale tobacco leaf harvesting operations. Flexible rollers may not be able to achieve clean and neat cutting when cutting tobacco leaves, resulting in tobacco leaf damage or incomplete cutting. Traditional harvesters often find it difficult to achieve precise harvesting of tobacco leaves at specific layers, such as the harvesting of bottom leaves. Harvesters using flexible rollers may cause significant damage to tobacco plants during operation, and may even cause tobacco plants to fall over.

[0003] In order to overcome the above problems, the present invention proposes an innovative harvester design, which adopts a combined semicircular cutter as the main harvesting tool to achieve the harvesting of tobacco leaves. Summary of the invention

[0004] The present invention provides a tobacco leaf harvester using a matched semicircular cutter. The matched semicircular cutter is used as a main harvesting tool, and the cutting knife is moved up and down along the tobacco stem to cut the petiole of the tobacco leaves, thereby reducing damage to the tobacco plants. While ensuring the cutting effect, layered harvesting of tobacco leaves at different levels and the need for one-time harvesting are achieved.

[0005] A tobacco leaf harvester using a semicircular cutter, comprising symmetrical support rods, characterized in that: opposite end portions of the symmetrical support rods are respectively fixedly connected by cross rods, the end portions of each support rod are respectively fixedly connected to support legs, the lower end of each support leg is respectively rotatably connected to a walking wheel, and the two cross rods are connected to a cutting assembly via a lifting assembly;

[0006] The cutting assembly comprises a plurality of electric push rods, the electric push rods are respectively fixed to the ends of the lower cross beam, the lower cross beam is arranged at the lower side of the cross beam, the ends of the telescopic rods of each electric push rod are respectively fixedly connected to the limit blocks, each of the limit blocks are respectively fixedly connected to the support shaft, the lower end of each of the support shafts is respectively fixedly connected to the fixed blocks, each of the fixed blocks is respectively fixed to one side of the tobacco leaf support plate, the two fixed blocks on the same side are fixedly connected by a support arm, a connecting block is fixed to the lower side of the support arm, the connecting block is fixedly connected to the tool handle, and the opposite ends of the tool handle are respectively fixedly connected to the cutting knife;

[0007] A tobacco transmission assembly is respectively arranged on the upper side of each pair of tobacco support plates.

[0008] As a further limitation of the present technical solution, the cutting knife is annular, the upper side of the cutting knife is sharpened, and the cutting knife is symmetrically arranged to form an annular area to encircle the cigarette rod.

[0009] As a further limitation of the present technical solution, the lifting assembly includes an upper cross beam, the middle parts of the upper sides of the two cross bars are fixedly connected to the two ends of the upper cross beam, the center of the upper cross beam is fixedly connected to the motor, the output shaft of the motor is fixedly connected to the screw rod, the screw rod is threadedly connected to the lower cross beam, the lower cross beam is passed through by two guide columns, and the two guide columns are fixedly connected to the upper cross beam.

[0010] As a further limitation of the present technical solution, the tobacco leaf transmission assembly includes an inner transmission module and an outer transmission module, the inner transmission module includes a rotating rod 1, the upper and lower ends of the two support shafts on the same side are respectively rotatably connected to the two ends of the rotating rod 1, and each pair of the rotating rods 1 are respectively matched and connected to a number of evenly arranged inner transmission belts, and the outer transmission module includes a rotating rod 2, the end portions of the two opposite sides of the two cross bars are respectively fixedly connected to support blocks, each of the support blocks is respectively fixedly connected to beams, and the two ends of the two beams on the same side are respectively rotatably connected to the two ends of the rotating rod 2, and each pair of the rotating rods 2 are respectively matched and connected to a number of evenly arranged outer transmission belts, and the outer sides of the support rods are respectively fixedly connected to tobacco baskets.

[0011] As a further limitation of the present technical solution, the end of each of the rotating rods 1 and 2 on the upper side is respectively fixedly connected to the output shaft of the motor 2, and the beam column and the support shaft are respectively fixedly connected to the corresponding motor 2.

[0012] As a further limitation of the present technical solution, each of the tool handles is respectively arranged between each pair of the tobacco leaf supporting plates.

[0013] As a further limitation of the present technical solution, the smoke basket is a square groove.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] Improve the efficiency and quality of tobacco leaf harvesting, reduce damage to tobacco plants, and achieve more accurate and efficient harvesting operations. The cutting knife can be controlled to move only slightly higher than the height of a single layer of tobacco leaves to achieve layered harvesting of each layer of tobacco leaves. The cutting knife can also be moved up to the upper part of the tobacco stem at one time to harvest multiple layers of tobacco leaves at one time. The harvester can achieve layered harvesting of tobacco leaves at different levels and one-time harvesting while ensuring the cutting effect. After the cutter is closed, it cuts along the direction of the tobacco stem, which can achieve better cutting effect and efficiency.

[0016] The cutting tool is arranged at the bottom so as to harvest the bottom layer of tobacco leaves. The cutting tools are arranged symmetrically so as to form an annular area to encircle the tobacco stem. The tobacco leaves are cut by the cutting assembly. The telescopic rod of the electric push rod is driven to extend and retract so as to drive the limit block and the support shaft to move. The support shaft drives the fixed block and the tobacco support plate, the support arm, the connecting block and the cutting tool to move. When the cutting tool moves, the telescopic rod of the electric push rod is extended so as to move the cutting tools away from each other. The telescopic rod of the electric cutting tool is retracted so as to drive the cutting tools closer to each other, so as to form an annular area to encircle the tobacco stem. The cutting tool moves from bottom to top so as to directly cut off the connection between the tobacco petiole and the tobacco stem, so as to avoid interference with the tobacco leaves during the harvesting process to the greatest extent, thereby improving the safety and reliability of the harvesting. Moreover, the cutting tool moves vertically along the direction of the tobacco stem to harvest the tobacco leaves, which causes less damage to the tobacco plants and less force, and is not easy to cause the tobacco plants to fall over. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. 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 these drawings without creative work. In the drawings:

[0018] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 ;

[0021] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A;

[0022] Figure 5 The three-dimensional structure of the present invention is shown in FIG. Figure 4 ;

[0023] Figure 6 The three-dimensional structure of the present invention is shown in FIG. Figure 5 .

[0024] In the figure: 1. support rod, 2. tobacco basket, 3. support leg, 4. walking wheel, 5. tobacco leaf support plate, 51. fixed block, 7. outer conveyor belt, 9. beam column, 10. fixed block, 11. rotating rod 2, 12. motor 2, 13. inner conveyor belt, 14. rotating rod 1, 15. upper crossbeam, 16. motor, 17. guide column, 18. lower crossbeam, 19. tool handle, 20. cutting knife, 21. electric push rod, 22. connecting block, 23. support arm, 24. cross bar, 25. limit block, 26. support shaft, 27. screw. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0026] A tobacco leaf harvester using a semicircular cutter, comprising a symmetrical support rod 1, the opposite ends of the symmetrical support rod 1 are fixedly connected by a cross rod 24, each end of the support rod 1 is fixedly connected to a support leg 3, the lower end of each support leg 3 is rotatably connected to a walking wheel 4, and the two cross rods 24 are connected to a cutting assembly through a lifting assembly;

[0027] In this embodiment, the walking wheel 4 is a Mecanum wheel, which is a prior art and will not be described in detail. The walking wheel 4 is driven by a motor arranged at the bottom to realize a multi-angle and multi-directional walking mode, and can control the harvester to move in multiple angles and directions.

[0028] The cutting assembly includes a plurality of electric push rods 21, which are respectively fixed to the ends of the lower cross beam 18, and the lower cross beam 18 is arranged on the lower side of the cross bar 24. The ends of the telescopic rods of each electric push rod 21 are respectively fixedly connected to the limit blocks 25, and each limit block 25 is respectively fixedly connected to the support shaft 26. The lower end of each support shaft 26 is respectively fixedly connected to the fixed block 51, and each fixed block 51 is respectively fixed to one side of the tobacco support plate 5. The two fixed blocks 51 on the same side are fixedly connected by the support arm 23. The lower side of the support arm 23 is fixed with a connecting block 22, and the connecting block 22 is fixedly connected to the tool handle 19. The opposite ends of the tool handle 19 are respectively fixedly connected to the cutting knife 20;

[0029] A tobacco transmission assembly is respectively arranged on the upper side of each pair of the tobacco support plates 5 .

[0030] The cutting knife 20 is annular in shape, and the upper side of the cutting knife 20 is sharpened. The cutting knife 20 is symmetrically arranged to form an annular area to surround the cigarette rod.

[0031] In this embodiment, the height of the support rod 1 is ensured to exceed the height of the tobacco plant. The tobacco leaves are cut by the cutting assembly. The telescopic rod of the electric push rod 21 is driven to extend and retract, which can drive the limit block 25 and the support shaft 26 to move. The support shaft 26 drives the fixed block 51 and the tobacco support plate 5, the support arm 23, the connecting block 22, and the cutting knife 20 to move. The cutting knife 20 moves, and the telescopic rod of the electric push rod 21 is extended to achieve the cutting knives 20 moving away from each other. The telescopic rod of the electric cutter 21 retracts and drives the cutting knives 20 to move closer to each other, so that the annular area formed by the cutting knife 20 surrounds the tobacco rod. The cutting knife 20 is driven upward by the lifting assembly to cut the tobacco leaves from top to bottom, and the cut tobacco leaves fall on the tobacco support plate 5. After cutting the tobacco leaves, the lifting assembly drives the cutting knife 20 to move back to its position.

[0032] The lifting assembly includes an upper crossbeam 15, the middle parts of the upper sides of the two cross bars 24 are fixedly connected to the two ends of the upper crossbeam 15, the center of the upper crossbeam 15 is fixedly connected to the motor 16, the output shaft of the motor 16 is fixedly connected to the screw rod 27, the screw rod 27 is threadedly connected to the lower crossbeam 18, the lower crossbeam 18 is passed through by two guide columns 17, and the two guide columns 17 are fixedly connected to the upper crossbeam 15.

[0033] In this embodiment, the motor 16 is a stepper motor, which drives the screw rod 27 to rotate. The screw rod 27 can drive the lower beam 18 to move vertically along the guide column 17. The screw rod 27 drives the lower beam 18 to move upward, which can drive the electric push rod 21, the support shaft 26 and the cutting knife 20 to move upward, so as to cut the tobacco leaves. The motor 16 drives the lower beam 18 to move downward, which can drive the cutting knife 20 to move back to its original position. Since the motor drives the screw rod 27 to rotate and drive the cutting knife 20 to move up and down, the upward distance of the cutting knife 20 can be realized. By controlling the cutting knife 20 to move only to a height slightly higher than a single layer of tobacco leaves, layered harvesting of each layer of tobacco leaves can be realized. It is also possible to move the cutting knife 20 to the upper part of the tobacco rod at one time, so as to harvest multiple layers of tobacco leaves at one time.

[0034] The tobacco leaf transmission assembly includes an inner transmission module and an outer transmission module, the inner transmission module includes a rotating rod 14, the upper and lower ends of the two support shafts 26 on the same side are respectively rotatably connected to the two ends of the rotating rod 14, and each pair of the rotating rods 14 are respectively matched and connected with a number of evenly arranged inner transmission belts 13, the outer transmission module includes a rotating rod 2 11, the opposite side ends of the two cross bars 24 are respectively fixedly connected to the support blocks 10, each of the support blocks 10 is respectively fixedly connected to the beam column 9, the two ends of the two beam columns 9 on the same side are respectively rotatably connected to the two ends of the rotating rod 2 11, each pair of the rotating rods 2 11 are respectively matched and connected with a number of evenly arranged outer transmission belts 7, and the outer sides of the support rods 1 are respectively fixedly connected to the tobacco basket 2.

[0035] In this embodiment, the rotation of the rotating rod 14 can drive the inner conveyor belt 13 to rotate, and the rotation of the rotating rod 2 11 can drive the outer conveyor belt 7 to rotate. The inner conveyor belt 13 of the inner conveying assembly can first gather the tobacco leaves to the bottom of the outer conveyor belt 7 through lifting and contraction, and finally the inner conveyor belt 13 and the outer conveyor belt 7 can be combined to transport the tobacco leaves upward to the tobacco basket 2 at the top.

[0036] The ends of each of the rotating rod 1 14 and the rotating rod 2 11 on the upper side are respectively fixedly connected to the output shaft of the motor 2 12 , and the beam column 9 and the supporting shaft 26 are respectively fixedly connected to the corresponding motor 2 12 .

[0037] The second motor 12 can drive the first rotating rod 14 and the second rotating rod 11 to rotate, thereby driving the inner transmission belt 13 and the outer transmission belt 7 to rotate.

[0038] Each of the tool handles 19 is respectively disposed between each pair of the tobacco leaf supporting plates 5 .

[0039] The smoke basket 2 is a square groove.

[0040] When using the harvester to harvest multiple layers of tobacco leaves, the device is controlled to move into the tobacco field, the telescopic rod of the electric push rod 21 is controlled to extend, and the limit block 25 and the support shaft 26 are driven to move, so as to realize the opening action of the cutting knife 20, and the telescopic rod of the electric push rod 21 is driven to retract, so as to drive the cutting knives 20 to approach each other, forming an annular area to surround the tobacco rod, and the motor 16 and the motor 2 12 are started. Through the lifting component, the cutting knife 20 is moved up to the upper part of the tobacco leaf layer to be harvested and between the tobacco leaf layer to be harvested, and each layer of tobacco leaf is cut in turn during the upward movement of the cutting knife 20 The cut tobacco leaves fall on the tobacco leaf supporting plate 5, and the motor 2 12 drives the rotating rod 14 and the rotating rod 2 11 to rotate, driving the inner conveyor belt 13 and the outer conveyor belt 7 to move. The tobacco leaves are gathered at the bottom of the outer conveyor belt 7 through the inner conveyor belt 13, and then driven by the outer conveyor belt 7 to be transmitted to the tobacco basket 2. After the tobacco leaves are cut, the motor 16 is operated to drive the screw rod 27 to rotate in the opposite direction, so that the lower beam 18 and the cutting knife 20 move back to their positions to prepare for the next cutting. The tobacco leaves are conveyed to the top tobacco basket 2. After the tobacco basket is full, the tobacco leaves are taken out manually for subsequent processing.

[0041] When the harvester is used to harvest single-layer tobacco leaves, or when the harvester is used to harvest multiple layers of tobacco leaves, the device is controlled to move into the tobacco field, the telescopic rod of the electric push rod 21 is controlled to extend, driving the limit block 25 and the support shaft 26 to move, realizing the opening action of the cutting knife 20, driving the telescopic rod of the electric push rod 21 to retract, driving the cutting knives 20 to approach each other, forming an annular area to encircle the tobacco rod, starting the motor 16 and the motor 12, and moving the cutting knife 20 upward to a position above the layer of tobacco leaves and between the layer of tobacco leaves above the layer of tobacco leaves through the lifting assembly. During the upward movement of the cutting knife 20, the cutting knife 20 is moved upward to a position between the layer of tobacco leaves above the layer of tobacco leaves. The layer of tobacco leaves is cut off, and the cut tobacco leaves fall on the tobacco leaf support plate 5. The motor 2 12 drives the rotating rod 14 and the rotating rod 2 11 to rotate, driving the inner conveyor belt 13 and the outer conveyor belt 7 to move. The tobacco leaves are gathered at the bottom of the outer conveyor belt 7 through the inner conveyor belt 13, and then driven by the outer conveyor belt 7 to be transmitted to the tobacco basket 2. After the tobacco leaves are cut, the motor 16 is operated to drive the screw rod 27 to rotate in the opposite direction, so that the lower crossbeam 18 and the cutting knife 20 move back to their positions to prepare for the next cutting. The tobacco leaves are conveyed to the top tobacco basket 2. After the tobacco basket is full, the tobacco leaves are taken out manually for subsequent processing.

[0042] In this embodiment, a sensor and a controller can also be provided. The sensor can be a visual sensor, which is installed on the lower side of the blade of the cutting knife 20 corresponding to the tool handle 19. The sensor and the controller communicate through the transmission module. The controller controls the movement of the motor 16, the motor 2 12 and the electric push rod 21. When the visual sensor detects that the tobacco rod is located in the middle of the cutting knife 20, the controller controls the telescopic rod of the electric push rod 21 to retract to close the cutting knife 20. At this time, the cutting knife 20 is encircled by the tobacco rod, and the visual sensor communicates with the controller, and the controller controls the telescopic rod of the electric push rod 21 to stop moving. At this time, the cutting knife 20 remains stationary, and the controller controls the motor 16 and the motor 2 12 to work, thereby realizing the operation of cutting tobacco leaves and transferring the tobacco leaves to the tobacco basket 2.

[0043] In summary, the present invention can improve the efficiency and quality of tobacco leaf harvesting, while reducing damage to tobacco plants, and achieving more accurate and efficient harvesting operations. The cutting knife can be controlled to move only to a height slightly higher than a single layer of tobacco leaves, so as to achieve layered harvesting of each layer of tobacco leaves. The cutting knife can also be moved up to the upper part of the tobacco stem at one time, so as to harvest multiple layers of tobacco leaves at one time. The harvester can achieve layered harvesting of tobacco leaves at different layers and the need for one-time harvesting while ensuring the cutting effect. After the cutter is closed, it cuts along the direction of the tobacco stem, so as to obtain better cutting effect and efficiency.

[0044] The cutting tool is arranged at the bottom so as to harvest the bottom layer of tobacco leaves. The cutting tools are arranged symmetrically so as to form an annular area to encircle the tobacco stem. The tobacco leaves are cut by the cutting assembly. The telescopic rod of the electric push rod is driven to extend and retract so as to drive the limit block and the support shaft to move. The support shaft drives the fixed block and the tobacco support plate, the support arm, the connecting block and the cutting tool to move. When the cutting tool moves, the telescopic rod of the electric push rod is extended so as to move the cutting tools away from each other. The telescopic rod of the electric cutting tool is retracted so as to drive the cutting tools closer to each other, so as to form an annular area to encircle the tobacco stem. The cutting tool moves from bottom to top so as to directly cut off the connection between the tobacco petiole and the tobacco stem, so as to avoid interference with the tobacco leaves during the harvesting process to the greatest extent, thereby improving the safety and reliability of the harvesting. Moreover, the cutting tool moves vertically along the direction of the tobacco stem to harvest the tobacco leaves, which causes less damage to the tobacco plants and less force, and is not easy to cause the tobacco plants to fall over.

[0045] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tobacco leaf harvester using a semicircular cutter, comprising a symmetrical support rod (1), characterized in that: The opposite end portions of the symmetrical support rods (1) are fixedly connected via cross bars (24), the end of each support rod (1) is fixedly connected to a support leg (3), the lower end of each support leg (3) is rotatably connected to a walking wheel (4), and the two cross bars (24) are connected to a cutting assembly via a lifting assembly; The cutting assembly comprises a plurality of electric push rods (21), the electric push rods (21) are respectively fixed to the ends of the lower cross beam (18), the lower cross beam (18) is arranged on the lower side of the cross bar (24), the telescopic rod end of each electric push rod (21) is respectively fixedly connected to a limit block (25), each limit block (25) is respectively fixedly connected to a support shaft (26), the lower end of each support shaft (26) is respectively fixedly connected to a fixed block (51), each fixed block (51) is respectively fixed to one side of the tobacco leaf support plate (5), two fixed blocks (51) on the same side are fixedly connected by a support arm (23), a connecting block (22) is fixedly connected to the lower side of the support arm (23), the connecting block (22) is fixedly connected to a tool handle (19), and the opposite end of the tool handle (19) is respectively fixedly connected to a cutting knife (20); A tobacco transmission component is respectively arranged on the upper side of each pair of tobacco support plates (5).

2. The tobacco leaf harvester using a combined semicircular cutter according to claim 1 is characterized in that: The cutting knife (20) is annular in shape, the upper side of the cutting knife (20) is sharpened, and the cutting knife (20) is symmetrically arranged to form an annular area surrounding the cigarette rod.

3. The tobacco leaf harvester using a combined semicircular cutter according to claim 2 is characterized in that: The lifting assembly comprises an upper crossbeam (15), the middle parts of the upper sides of the two crossbars (24) are fixedly connected to the two ends of the upper crossbeam (15), the center of the upper crossbeam (15) is fixedly connected to the motor (16), the output shaft of the motor (16) is fixedly connected to the screw rod (27), the screw rod (27) is threadedly connected to the lower crossbeam (18), the lower crossbeam (18) is penetrated by two guide columns (17), and the two guide columns (17) are fixedly connected to the upper crossbeam (15).

4. The tobacco leaf harvester using a combined semicircular cutter according to claim 3 is characterized in that: The tobacco leaf transmission assembly comprises an inner transmission module and an outer transmission module, wherein the inner transmission module comprises a rotating rod one (14), the upper ends and lower ends of the two support shafts (26) on the same side are respectively rotatably connected to the two ends of the rotating rod one (14), and each pair of the rotating rods one (14) is respectively matched and connected to a plurality of evenly arranged inner transmission belts (13); the outer transmission module comprises a rotating rod two (11), the opposite side ends of the two cross bars (23) are respectively fixedly connected to support blocks (10), and each support block (10) is respectively fixedly connected to a beam column (9), and the two ends of the two beam columns (9) on the same side are respectively rotatably connected to the two ends of the rotating rod two (11), and each pair of the rotating rods two (11) is respectively matched and connected to a plurality of evenly arranged outer transmission belts (7), and the outer sides of the support rods (1) are respectively fixedly connected to a tobacco basket (2).

5. The tobacco leaf harvester using a combined semicircular cutter according to claim 4 is characterized in that: The ends of each of the rotating rods 1 (14) and 2 (11) on the upper side are respectively fixedly connected to the output shaft of the motor 2 (12), and the beam column (9) and the support shaft (26) are respectively fixedly connected to the corresponding motor 2 (12).

6. The tobacco leaf harvester using a combined semicircular cutter according to claim 5, characterized in that: Each of the tool handles (19) is respectively arranged between each pair of the tobacco leaf supporting plates (5).

7. The tobacco leaf harvester using a combined semicircular cutter according to claim 6, characterized in that: The smoke basket (2) is a square groove.

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